One-way valve for air compressor

Abstract

The utility model discloses a one-way valve for an air compressor, and relates to the technical field of one-way valves, the one-way valve for the air compressor comprises a main valve, the main valve is provided with a T-shaped valve body with three air ports, and the three air ports of the valve body are respectively an air inlet, a first air outlet and a second air outlet. A first one-way assembly and a second one-way assembly are connected into the first air outlet and the second air outlet correspondingly. A ball cavity is formed in the middle position of the two air ports for mounting the first one-way assembly and the second one-way assembly; a ball head is movably connected in the ball cavity; a valve handle is fixed on the ball head; an air inlet is in threaded connection with an air compressor; the three ports of the air channel correspond to the air inlet, the first air outlet and the second air outlet respectively, at the moment, air generated by the compressor enters the air channel from the air inlet, the air is divided into two paths, the two paths of air are exhausted to the first air outlet and the second air outlet respectively, and the air supply mode can achieve simultaneous air supply of the two paths.

Description

Technical Field

[0001] This utility model specifically relates to the field of one-way valve technology, and more specifically to a one-way valve used in air compressors. Background Technology

[0002] The main functions of the check valve on an air compressor are as follows:

[0003] Preventing backflow of gas: This is the primary function of a check valve. When the air compressor is operating, it ensures that compressed air flows only in the designated direction to the air tank or subsequent air-consuming equipment. When the compressor stops operating, the check valve immediately closes, preventing compressed air in the air tank or pipeline from flowing back into the compressor. This avoids damage to the compressor's impeller and other components due to reverse airflow, and also maintains stable air pressure in the air tank, preventing gas leaks that could cause a pressure drop.

[0004] Compressor Protection: Check valves prevent water hammer damage to the compressor caused by pressure fluctuations in the pipeline during startup or shutdown. Water hammer can cause pipeline vibration, noise, and even damage compressor components. By preventing backflow, check valves effectively reduce this pressure shock and extend the compressor's lifespan.

[0005] Improved system efficiency: By preventing backflow of gas, the one-way valve helps maintain the pressure balance of the entire compressed air system, allowing the compressor to operate under more stable conditions and reducing energy loss caused by pressure fluctuations, thereby improving the overall efficiency of the air compressor system.

[0006] Chinese Patent Publication No. CN202023971U discloses a novel one-way valve for a scroll air compressor, comprising a sleeve-shaped valve body and a sleeve-shaped air outlet connector. The valve body is fitted inside the air outlet connector, the lower end of the air outlet connector is an air outlet, the inner cavity of the valve body is connected to the inner cavity of the air outlet connector, a sealing device is provided in the inner cavity of the valve body, and a transition connector integrally formed therewith is also provided on the valve body, the inner cavity of the transition connector being connected to the inner cavity of the valve body.

[0007] The one-way valve in the aforementioned patent has only one outlet. When the one-way valve is damaged, the air compressor cannot be used, especially in emergency situations, as it does not have a backup function; or when used in some special places, it cannot provide an additional air path. Utility Model Content

[0008] The purpose of this invention is to provide a one-way valve for an air compressor, a one-way valve with two air passages, which can have a backup function and can also provide an additional air passage; in order to solve the technical problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A one-way valve for an air compressor includes a main valve having a T-shaped valve body with three ports, the three ports being an inlet, a first outlet, and a second outlet, wherein a first one-way component and a second one-way component are respectively connected to the first outlet and the second outlet.

[0011] A ball cavity is provided at the middle position of the two air ports of the first one-way component and the second one-way component; a ball head is movably connected inside the ball cavity; a valve handle is fixed on the ball head;

[0012] The ball head has an air passage; the air passage is T-shaped.

[0013] As a further technical solution of this utility model, the first unidirectional component and the second unidirectional component are symmetrically arranged, and the first unidirectional component and the second unidirectional component are composed of the same structure.

[0014] As a further technical solution of this utility model, the first one-way component includes a conical valve disc, which is fixed to one end of a guide rod, and a slip ring is also fixed on the guide rod; the guide rod is slidably connected in the middle of the inner end of the threaded joint, and a spring is sleeved between the threaded joint and the slip ring.

[0015] As a further technical solution of this utility model, multiple air outlet grooves are arranged in a ring array on the outer side of the inner end circular hole of the threaded joint.

[0016] As a further technical solution of this utility model, the air inlet, the first air outlet and the second air outlet are all provided with internal threads; the air inlet is threadedly connected to the air compressor; the first air outlet and the second air outlet are connected to the threaded joint.

[0017] As a further technical solution of this utility model, the conical valve disc is connected to the conical surface; the conical surface is disposed inside the valve body, and there are two conical surfaces, which are respectively located at the end near the first air outlet and the second air outlet.

[0018] As a further technical solution of this utility model, the storage box is fixed on the bracket.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. In this utility model, the air inlet is threadedly connected to the air compressor; the three ports of the air passage correspond to the air inlet, the first air outlet and the second air outlet respectively. At this time, the gas generated by the compressor enters the air passage from the air inlet, and the gas is divided into two paths, which are discharged to the first air outlet and the second air outlet respectively. This air supply method can realize the simultaneous supply of air from both paths.

[0021] 2. As an operating method, the valve handle is rotated 90 degrees clockwise. At this time, two of the three ports of the air passage correspond to the air inlet and the second air outlet, respectively. At this time, the gas generated by the compressor enters the air passage from the air inlet and is discharged to the second air outlet, realizing the one-way air supply of the one-way valve.

[0022] 3. As another way of operation, the valve handle is rotated 90 degrees counterclockwise. At this time, two of the three ports of the air passage correspond to the air inlet and the first air outlet, respectively. At this time, the gas generated by the compressor enters the air passage from the air inlet and is discharged to the first air outlet, realizing the one-way air supply of the one-way valve. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0024] Figure 2 This utility model Figure 1 The main view.

[0025] Figure 3 This utility model Figure 2 AA sectional view.

[0026] Figure 4 This utility model Figure 1 A schematic diagram of the internal structure.

[0027] Figure 5 This utility model Figure 4 A schematic diagram of the split structure.

[0028] Figure 6 This utility model Figure 5 A magnified view of a portion of the image.

[0029] In the diagram: 1-Main valve, 2-First one-way assembly, 3-Second one-way assembly, 4-Ball head, 5-Valve handle, 6-Air passage;

[0030] 11-Valve body, 12-Air inlet, 13-First air outlet, 14-Second air outlet, 15-Spherical cavity, 16-Conical surface;

[0031] 21-Conical valve disc, 22-Slip ring, 23-Guide rod, 24-Spring, 25-Air outlet groove, 26-Threaded connector. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figure 1-6 In this embodiment of the present invention, a one-way valve for an air compressor includes a main valve 1. The main valve 1 has a valve body 11 arranged in a T shape and having three air ports. The three air ports of the valve body 11 are an air inlet 12, a first air outlet 13, and a second air outlet 14, wherein a first one-way component 2 and a second one-way component 3 are respectively connected to the first air outlet 13 and the second air outlet 14.

[0034] A ball cavity 15 is provided at the middle position of the two air ports of the first one-way component 2 and the second one-way component 3; a ball head 4 is movably connected inside the ball cavity 15; a valve handle 5 is fixed on the ball head 4;

[0035] The ball head 4 has an air passage 6 inside; the air passage 6 is T-shaped.

[0036] More specifically, the air inlet 12, the first air outlet 13, and the second air outlet 14 are all provided with internal threads; the air inlet 12 is threadedly connected to the air compressor; and the first air outlet 13 and the second air outlet 14 are connected to the threaded connector 26.

[0037] Please see the appendix Figure 3 The following specific examples are as follows Figure 3 A detailed introduction based on the benchmark:

[0038] In specific example 1, the air inlet 12 is threadedly connected to the air compressor; the three ports of the air passage 6 correspond to the air inlet 12, the first air outlet 13 and the second air outlet 14 respectively. At this time, the gas generated by the compressor enters the air passage 6 from the air inlet 12, and the gas is divided into two paths, which are discharged to the first air outlet 13 and the second air outlet 14 respectively. This air supply method can achieve simultaneous air supply from both paths.

[0039] In specific example 2, based on specific example 1, the valve handle 5 is rotated 90 degrees clockwise. At this time, two of the three ports of the air passage 6 correspond to the air inlet 12 and the second air outlet 14, respectively. At this time, the gas generated by the compressor enters the air passage 6 from the air inlet 12 and is discharged to the second air outlet 14, realizing the one-way air supply of the one-way valve.

[0040] In specific example 3, based on specific example 1, the valve handle 5 is rotated 90 degrees counterclockwise. At this time, two of the three ports of the air passage 6 correspond to the air inlet 12 and the first air outlet 13, respectively. At this time, the gas generated by the compressor enters the air passage 6 from the air inlet 12 and is discharged to the first air outlet 13, realizing the one-way air supply of the one-way valve.

[0041] In this embodiment, the first unidirectional component 2 and the second unidirectional component 3 are symmetrically arranged, and the first unidirectional component 2 and the second unidirectional component 3 are composed of the same structure.

[0042] By adopting the above technical solution, the first unidirectional component 2 and the second unidirectional component 3, in conjunction with the ball head 4, can achieve independent gas supply, backup gas supply and bidirectional gas supply; thus meeting different needs.

[0043] In this embodiment, the first one-way component 2 includes a conical valve disc 21, which is fixed to one end of a guide rod 23, and a slip ring 22 is also fixed on the guide rod 23; the guide rod 23 is slidably connected in the middle of the inner end of the threaded joint 26, and a spring 24 is sleeved between the threaded joint 26 and the slip ring 22; a plurality of air outlet grooves 25 are arranged in a ring array on the outer side of the inner end of the threaded joint 26.

[0044] More specifically, in this embodiment, the conical valve disc 21 is connected to the conical surface 16; the conical surface 16 is disposed inside the valve body 11, and there are two conical surfaces 16, which are respectively located at one end near the first air outlet 13 and the second air outlet 14.

[0045] By adopting the above technical solution, when gas is introduced into the air passage 6, it will push the conical valve 21 to one side to compress the spring 24. At this time, the conical valve 21 separates from the conical surface 16, and the compressed gas is injected from both sides of the conical valve 21, passes through the slip ring 22 and the air outlet groove 25 and is discharged, thereby realizing the gas supply of the gas-using equipment.

[0046] The slip ring 22 and guide rod 23 ensure the stable sliding of the conical valve disc 21, thereby ensuring the normal discharge of gas.

[0047] As a further explanation of this embodiment:

[0048] Spring material

[0049] Stainless steel: Materials such as 304 and 316 stainless steel have excellent corrosion resistance and are suitable for applications where compressed air may contain moisture, oil mist, or other corrosive substances. In some applications with high air quality requirements, such as air compression systems in the food and pharmaceutical industries, stainless steel springs can effectively prevent rust and corrosion, ensuring stable spring performance.

[0050] Piano wire: Possessing high strength and elasticity, it can withstand large loads. In general industrial applications, where air compressors operate in relatively clean environments without severe corrosion, piano wire springs are a common choice, providing stable elasticity to ensure the proper functioning of check valves.

[0051] Nickel-chromium alloy: It has good high-temperature performance and corrosion resistance. When the check valve needs to work in a high-temperature environment, the nickel-chromium alloy spring can maintain its elasticity and strength, making it suitable for some special working conditions, such as high-temperature compressed air systems.

[0052] Spring diameter

[0053] Depending on the valve size and operating pressure: if the check valve has a larger diameter, a larger spring force is required to ensure the valve closes and seals, thus the spring diameter will increase accordingly. For air compressor systems operating at high pressures, a larger diameter spring is also needed to provide sufficient elasticity and prevent gas backflow. For example, in some large industrial air compressors, the spring diameter of the check valve may be around 5-10 mm to meet the sealing requirements of high-pressure gases.

[0054] Consideration of installation space: The spring diameter is also limited by the internal space of the check valve. In some small or compact check valve designs, the spring diameter cannot be too large, otherwise it cannot be installed. Therefore, it is necessary to select an appropriate diameter to fit the structural dimensions of the check valve while ensuring the spring force.

[0055] Spring model

[0056] Compression spring: This is the most commonly used spring type in check valves. It generates elastic force through compression deformation, pushing the valve disc to close. Its model is usually determined by parameters such as the spring's wire diameter, outer diameter, free height, and number of coils. For example, in some common air compressor check valves, compression springs with a wire diameter of 1-3mm, an outer diameter of 5-10mm, and a free height of 10-20mm might be selected.

[0057] Disc springs: When a check valve requires a large spring force and space is limited, disc springs are an option. They are characterized by their small size and high load-bearing capacity, providing significant spring force within a limited space. In some high-pressure, high-flow-rate air compressor check valves, disc springs can meet the required spring force, ensuring reliable closure of the check valve.

[0058] The working principle of this utility model is as follows: the air inlet 12 is threadedly connected to the air compressor; the three ports of the air passage 6 correspond to the air inlet 12, the first air outlet 13 and the second air outlet 14 respectively. At this time, the gas generated by the compressor enters the air passage 6 from the air inlet 12. The gas is divided into two paths and discharged to the first air outlet 13 and the second air outlet 14 respectively. This gas supply method can realize the simultaneous supply of gas from both paths.

[0059] As one operating method: rotate valve handle 5 clockwise by 90 degrees. At this time, two of the three ports of air passage 6 correspond to the air inlet 12 and the second air outlet 14 respectively. At this time, the gas generated by the compressor enters the air passage 6 from the air inlet 12 and is discharged to the second air outlet 14, realizing the one-way air supply of the one-way valve.

[0060] As another way of operating: rotate valve handle 5 counterclockwise by 90 degrees. At this time, two of the three ports of air passage 6 correspond to air inlet 12 and first air outlet 13 respectively. At this time, the gas generated by the compressor enters air passage 6 from air inlet 12 and is discharged to first air outlet 13, realizing one-way air supply of the one-way valve.

[0061] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0062] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A one-way valve for an air compressor, characterized in that: Includes a main valve (1), which has a T-shaped valve body (11) with three air ports. The three air ports of the valve body (11) are an air inlet (12), a first air outlet (13), and a second air outlet (14), wherein a first one-way component (2) and a second one-way component (3) are respectively connected to the first air outlet (13) and the second air outlet (14). A ball cavity (15) is provided in the middle of the two air ports of the first one-way component (2) and the second one-way component (3); a ball head (4) is movably connected in the ball cavity (15); a valve handle (5) is fixed on the ball head (4); The ball head (4) has an air passage (6) inside; the air passage (6) is T-shaped.

2. The one-way valve for an air compressor according to claim 1, characterized in that: The first unidirectional component (2) and the second unidirectional component (3) are symmetrically arranged, and the first unidirectional component (2) and the second unidirectional component (3) are composed of the same structure.

3. The one-way valve for an air compressor according to claim 1, characterized in that: The first one-way component (2) includes a conical valve disc (21) fixed to one end of a guide rod (23), and a slip ring (22) is also fixed on the guide rod (23); the guide rod (23) is slidably connected in the middle of the inner end of the threaded joint (26), and a spring (24) is sleeved between the threaded joint (26) and the slip ring (22).

4. The one-way valve for an air compressor according to claim 3, characterized in that: Multiple air vents (25) are arranged in a ring array on the outer side of the inner end round hole of the threaded joint (26).

5. The one-way valve for an air compressor according to claim 1, characterized in that: The air inlet (12), the first air outlet (13), and the second air outlet (14) are all provided with internal threads; the air inlet (12) is threadedly connected to the air compressor; the first air outlet (13) and the second air outlet (14) are connected to the threaded connector (26).

6. The one-way valve for an air compressor according to claim 3, characterized in that: The conical valve disc (21) is connected to the conical surface (16); the conical surface (16) is located inside the valve body (11), and there are two conical surfaces (16), which are located at the ends near the first air outlet (13) and the second air outlet (14), respectively.

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