Valve body, intake valve and compressor

Abstract

This invention relates to the technical field of compressors, and discloses a valve body, an intake valve, and a compressor. The valve body has an internally connected intake passage and an outlet passage, with an angle between the extending directions of the intake passage and the outlet passage. The valve body also has an internally formed venting passage, with its inlet located within and adjacent to the intake passage, and facing towards the intake passage inlet. The outlet of the venting passage extends to the outside of the valve body. This design suppresses condensate formation and reduces the risk of condensate falling onto the valve plate's sealing surface, thus lowering the risk of condensate adhering to the valve plate and consequently reducing the risk of valve plate failure due to condensate freezing. It also reduces the risk of gas backflow carrying lubricating oil into the intake passage, and consequently lowers the risk of oil spraying and leakage from the intake valve.

Description

Technical Field

[0001] This invention belongs to the technical field of compressors, specifically relating to a valve body, an intake valve, and a compressor. Background Technology

[0002] A compressor is a fluid machine that raises low-pressure gas to high-pressure gas. When a compressor is working, outside air is filtered by an air filter, then enters the machine body through the intake valve, and is then compressed by the machine body before being sent into the air storage tank.

[0003] A typical intake valve includes an elbow valve body and a valve plate. The elbow valve body has interconnected intake and exhaust channels, forming an angle, typically 90°, between them. A vent hole is formed on the circumferential wall of the intake channel for pressure relief. The valve plate is located within the exhaust channel and seals its inlet. When the pressure in the air tank reaches a preset value, the valve plate seals the inlet of the exhaust channel to prevent backflow of gas and the introduction of lubricating oil from the power components into the intake channel. At this time, air output from the air filter will still enter the intake channel, releasing through the vent hole, thus depressurizing the intake channel.

[0004] However, during venting, the vent collides with the inner wall of the intake passage and generates condensate. Since the vent hole is located directly above the valve plate, the venting airflow carries the condensate to the top of the valve plate before entering the vent hole, making it easier for the condensate to fall onto the sealing surface of the valve plate. Once the condensate freezes, the valve plate will fail to seal, which increases the risk of valve plate seal failure. This also increases the risk of gas backflow and lubricating oil entering the intake passage, resulting in a high risk of oil spraying and leakage from the intake valve. Summary of the Invention

[0005] To address the shortcomings of the prior art, the present invention provides a valve body, an intake valve, and a compressor, which not only suppresses the generation of condensate but also reduces the risk of condensate falling onto the sealing surface of the valve plate. This lowers the risk of condensate adhering to the valve plate, thereby reducing the risk of the valve plate failing due to condensate freezing. Furthermore, it reduces the risk of gas backflow and carrying lubricating oil into the intake passage, and consequently, reduces the risk of oil spraying and leakage from the intake valve.

[0006] The technical effects to be achieved by this invention are realized through the following aspects:

[0007] In a first aspect, the present invention provides a valve body, wherein an air inlet channel and an air outlet channel are formed inside the valve body, and the extension direction of the air inlet channel and the extension direction of the air outlet channel form an angle.

[0008] The valve body also has a venting channel inside. The inlet of the venting channel is located inside and adjacent to the inlet of the air intake channel, and the inlet of the venting channel faces the inlet of the air intake channel. The outlet of the venting channel extends to the outside of the valve body.

[0009] In some implementations, the valve body includes a main body and a venting part, the air inlet passage and the air outlet passage are both formed in the main body, and the main body also has a venting hole;

[0010] The venting part is connected to the inner wall of the air intake channel and together they form a venting hole. The inlet of the venting hole is set facing the inlet of the air intake channel. The venting hole is connected to the discharge hole and together they form the venting channel.

[0011] Secondly, the present invention provides an intake valve, including a valve body according to any of the above implementations, wherein the intake valve further includes a check valve assembly installed in the outlet channel for sealing the inlet of the outlet channel.

[0012] In some implementations, the check valve assembly includes a cylinder located within the outlet passage and connected to the valve body, the cylinder having a movable groove facing the inlet passage.

[0013] In some implementations, an oil guide groove is formed at one end of the cylinder block adjacent to the intake passage, the oil guide groove extending to both the movable groove and the outer peripheral wall of the cylinder block; and / or

[0014] The cylinder body has a breather oil drain hole on its outer side, and the breather oil drain hole is located at one end of the cylinder body near the air intake channel. The breather oil drain hole is connected to the movable groove.

[0015] In some implementations, the breathing oil drain hole is angled downwards.

[0016] In some implementations, the backflow prevention component further includes:

[0017] A cover assembly is located in the movable groove and is sealed to one end of the cylinder body adjacent to the air intake channel. The cover assembly and the cylinder body together form a movable cavity. The cover assembly has a clearance hole that communicates with the movable cavity.

[0018] A piston, wherein a portion of the piston is movably disposed within the movable cavity, and the piston also movably passes through the clearance hole; and

[0019] A valve plate, located outside the movable chamber and connected to the piston, is used to close the inlet of the air outlet passage.

[0020] In some implementations, the check valve assembly further includes a valve stem and a check spring. The valve stem is movably connected to a piston and also connected to a valve plate, such that the piston is connected to the valve plate via the valve stem. The check spring is sleeved on the valve stem and abuts against both the cover and the valve plate, thereby pushing the valve plate to seal the inlet of the air intake passage; and / or,

[0021] The check valve assembly also includes a sealing ring, which abuts against the cylinder body and the cover assembly respectively, so that the cover assembly is sealed to the cylinder body through the sealing ring.

[0022] In some implementations, the piston has a movable channel, and the valve stem is located within the movable channel and is movably connected to the piston;

[0023] The valve stem has multiple clearance surfaces on its outer side. These clearance surfaces are arranged around the circumference of the valve stem and connected in sequence. A sliding edge is formed between two adjacent clearance surfaces, and the sliding edge is slidably connected to the inner wall of the movable channel.

[0024] Thirdly, the present invention provides a compressor including an intake valve of any of the above implementations.

[0025] In summary, the present invention has at least the following advantages:

[0026] The valve body provided by this invention has its venting channel inlet located within and adjacent to the intake channel inlet. This allows gas to exit quickly through the venting channel after entering the intake channel, reducing gas collisions with the inner wall of the intake channel and suppressing condensation. Furthermore, the venting channel inlet is vertically offset from the valve plate, preventing the venting airflow from carrying condensation to the top of the valve body and reducing the risk of condensation falling onto the valve plate's sealing surface. Thus, both condensation generation and the risk of condensation falling onto the valve plate's sealing surface are suppressed, resulting in a lower risk of condensation adhering to the valve plate and consequently a lower risk of valve plate failure due to condensation freezing. Because the risk of valve plate failure is lower, the risk of gas backflow and carrying lubricating oil into the intake channel is also lower, reducing the risk of oil spraying and leakage from the intake valve. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the intake valve in some embodiments;

[0028] Figure 2 for Figure 1 The cross-sectional view along line AA of the intake valve shown;

[0029] Figure 3 for Figure 2The diagram shown is an enlarged view of the intake valve at point B.

[0030] Figure 4 for Figure 1 A schematic diagram of the valve stem of the intake valve shown.

[0031] Figure 5 for Figure 1 A cross-sectional view along line CC of the intake valve shown;

[0032] Figure 6 for Figure 5 The diagram shown is an enlarged view of the intake valve at point D.

[0033] Figure 7 for Figure 1 Another cross-sectional view of the intake valve shown;

[0034] Figure 8 for Figure 1 The diagram shows a partial structural schematic of the intake valve.

[0035] Marked in the diagram: 10, Intake valve;

[0036] 100. Valve body; 101. Air inlet passage; 102. Air outlet passage; 103. Drain passage; 104. Water suction groove; 110. Main body; 111. Drain hole; 120. Drain section; 121. Drain hole;

[0037] 200. Check valve assembly; 210. Cylinder block; 211. Movable groove; 212. Oil guide groove; 213. Breathing drain hole; 214. Mounting groove; 220. Cover assembly; 221. Clearance hole; 201. Movable cavity; 230. Piston; 231. Plug body; 2311. Embedded ring groove; 232. Plug rod; 2301. Movable passage; 233. Sealing scraper ring; 240. Valve plate; 250. Valve stem; 251. Clearance surface; 252. Sliding edge; 260. Check spring; 270. Sealing ring;

[0038] 300. Adsorption components;

[0039] 400. Install the retaining ring. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of the present invention.

[0041] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0042] Example 1:

[0043] Please see the appendix Figures 1-2 The valve body 100 of the present invention has an internally formed air inlet channel 101 and an air outlet channel 102 that are connected to each other. The extending direction of the air inlet channel 101 and the extending direction of the air outlet channel 102 form an angle, preferably but not limited to 90°. It is understood that the angle between the extending direction of the air inlet channel 101 and the extending direction of the air outlet channel 102 can also be 45°, 60°, 100°, or other angles.

[0044] Furthermore, a venting channel 103 is formed inside the valve body 100. The inlet of the venting channel 103 is located inside and adjacent to the inlet of the intake channel 101, so that the inlet of the venting channel 103 is vertically offset from the valve plate 240. The inlet of the venting channel 103 faces the inlet of the intake channel 101, that is, the inlet of the venting channel 103 is directly opposite the inlet of the intake channel 101, so that the gas entering the intake channel 101 can enter the venting channel 103 more quickly. The outlet of the venting channel 103 extends to the outside of the valve body 100, and the gas can be discharged to the outside through the venting channel 103 to achieve the function of depressurizing the intake valve 10.

[0045] In this embodiment, when the gas pressure in the gas storage tank reaches a preset value, the inlet of the outlet channel 102 is closed, the switch valve opens the vent channel 103, and the gas entering the intake channel 101 enters through the inlet of the vent channel 103, and is then discharged to the outside of the valve body 100 through the vent channel 103. That is, the vent gas flows out through the vent hole 121, thereby achieving the effect of depressurizing the intake valve 10. It can be understood that the air filter is connected to the inlet of the intake channel 101 through a pipe, and the gas output from the pipe is the gas entering the intake channel 101.

[0046] The valve body 100 provided by this invention has its venting channel 103 inlet located within and adjacent to the intake channel 101. This allows gas to exit quickly through the venting channel 103 after entering the intake channel 101, reducing the amount of gas colliding with the inner wall of the intake channel 101 and suppressing the generation of condensate. Furthermore, the venting channel 103 inlet is vertically offset from the valve plate 240, preventing the venting airflow from carrying condensate to the top of the valve body 100 and reducing the risk of condensate falling onto the sealing surface of the valve plate 240. Thus, both the generation of condensate and the risk of condensate falling onto the sealing surface of the valve plate 240 are suppressed, resulting in a lower risk of condensate adhering to the valve plate 240 and consequently a lower risk of valve plate 240 failing due to condensate freezing. Because the risk of valve plate 240 failure is low, the risk of gas backflow carrying lubricating oil into the intake channel 101 is also low, reducing the risk of oil spraying and leakage from the intake valve 10.

[0047] In some preferred embodiments, the valve body 100 includes a main body 110 and a venting portion 120. An intake passage 101 and an outlet passage 102 are both formed in the main body 110. The main body 110 also has a venting hole 111 extending to the outer side of the main body 110. The venting portion 120 is connected to the inner wall of the intake passage 101 and together forms the venting hole 121. The inlet of the venting hole 121 faces the inlet of the intake passage 101 and is adjacent to the inlet of the intake passage 101. The venting hole 121 and the venting hole 111 are connected and together form a venting passage 103, the inlet of which is the inlet of the venting hole 121. In this embodiment, the venting part 120 is connected to the inner wall of the air intake channel 101, so that the inner wall of the air intake channel 101 plays a stabilizing role for the venting part 120, ensuring the positional stability of the venting channel 103, and thus ensuring that the inlet of the venting channel 103 is directly opposite the inlet of the air intake channel 101.

[0048] Preferably, the main body 110 and the venting part 120 are integrally formed. Of course, the main body 110 and the venting part 120 can also be formed separately, with the venting part 120 fixed to the inner wall of the air intake passage 101 by a connector or connecting layer.

[0049] It is understood that the venting part 120 is not limited to being connected to the inner wall of the air intake channel 101. For example, in some other embodiments, the venting part 120 is located at the center of the air intake channel 101, and a venting hole 121 is formed inside the venting part 120. The venting hole 121 is connected to the discharge hole 111 and together they form the venting channel 103.

[0050] Example 2:

[0051] This embodiment, based on the above embodiment, provides an intake valve 10. Please refer to [link / reference]. Figures 2-8 .

[0052] An intake valve 10 is provided, which further includes a check valve assembly 200. The check valve assembly 200 is installed in the outlet passage 102 and is used to seal the inlet of the outlet passage 102. In this embodiment, when the gas tank reaches a preset gas pressure value, the check valve assembly 200 is activated to seal the inlet of the outlet passage 102, preventing gas from flowing back into the intake passage 101, and thus preventing the gas from carrying lubricating oil back into the intake passage 101.

[0053] In some preferred embodiments, the check valve assembly 200 includes a cylinder 210 located within the exhaust passage 102 and connected to the valve body 100. The cylinder 210 has a movable groove 211 facing the intake passage 101, which is used to install a drive structure; that is, the cylinder 210 provides an installation position for the drive structure. Preferably, the cylinder 210 and the valve body 100 are integrally formed, avoiding the need to install the cylinder 210 within the exhaust passage 102 and improving the assembly efficiency of the intake valve 10. Of course, in other embodiments, the cylinder 210 and the valve body 100 can also be separately formed, with the cylinder 210 mounted on the valve body 100 via a connector.

[0054] In some preferred embodiments, the check valve assembly 200 further includes a cover 220, a piston 230, and a valve plate 240. The cover 220 is located within the movable groove 211 and is sealed to one end of the cylinder 210 adjacent to the intake passage 101. The cover 220 and the cylinder 210 together form a movable cavity 201, and the cover 220 has a clearance hole 221 communicating with the movable cavity 201. Part of the piston 230 is movably disposed within the movable cavity 201, and the piston 230 also movably passes through the clearance hole 221. The valve plate 240 is located outside the movable cavity 201 and connected to the piston 230, used to seal the inlet of the exhaust passage 102.

[0055] Specifically, the piston 230 includes a piston body 231 and a piston rod 232. The piston body 231 is located inside the movable cavity 201 and is slidably connected to the peripheral wall of the movable cavity 201, dividing the movable cavity 201 into a first cavity and a second cavity. The first cavity is used to communicate with external high-pressure gas. One end of the piston rod 232 is fixedly connected to the piston body 231, and the piston rod 232 passes through the clearance hole 221. The other end of the piston rod 232 is connected to the valve plate 240. In this embodiment, when the gas tank reaches the preset gas pressure value, the venting channel 103 is opened, and at the same time, gas is filled into the first cavity of the movable cavity 201 to push the piston 230 to move, so that the piston 230 drives the valve plate 240 to move, thereby causing the valve plate 240 to seal the inlet of the gas outlet channel 102.

[0056] In some preferred embodiments, an oil guide groove 212 is formed at one end of the cylinder body 210 adjacent to the intake passage 101, and the oil guide groove 212 extends to the movable groove 211 and the outer peripheral wall of the cylinder body 210. It can be understood that the sensitivity of the piston 230 is affected by its weight; that is, the greater the weight of the piston 230, the worse its sensitivity. Since the piston 230 drives the valve plate 240, the sensitivity of the valve plate 240 is affected by the weight of the piston 230. In other words, the heavier the piston 230, the worse the sensitivity of the valve plate 240, and the higher the risk of gas backflow. Therefore, in this embodiment, an oil guide groove 212 is formed at one end of the cylinder body 210 adjacent to the intake passage 101. The oil guide groove 212 extends to the movable groove 211 and the outer peripheral wall of the cylinder body 210, so that the oil guide groove 212 guides the oil accumulated at the upper end of the cover 220 to the outside of the cylinder body 210, suppressing the problem of oil accumulation entering the movable cavity 201 and contacting the piston 230, thereby suppressing the problem of oil accumulation increasing the weight of the piston 230 and reducing the probability that the valve plate 240 cannot close in time. It should be noted that the surface of the piston 230 needs to be coated with an appropriate amount of lubricating oil for lubrication of the piston 230. The aforementioned appropriate amount of lubricating oil is not considered oil accumulation.

[0057] Furthermore, there are multiple oil guide grooves 212, which are evenly distributed at one end of the cylinder body 210. Of course, in some other embodiments, there may be only one oil guide groove 212. Even further, there may be two oil guide grooves 212, which are symmetrically arranged on the cylinder body 210. It is understood that the number of oil guide grooves 212 may also be three, four, five, or other quantities.

[0058] In some preferred embodiments, a breather hole 213 is provided on the outer side of the cylinder body 210, and the breather hole 213 is located at one end of the cylinder body 210 adjacent to the intake passage 101. The breather hole 213 is connected to the movable groove 211. Specifically, the breather hole 213 is located on the outer side of the cylinder body 210 and is connected to the second cavity of the movable cavity 201. In this embodiment, when there is oil accumulation in the second cavity of the movable cavity 201, the piston 230's plug 231 will scrape the accumulated oil into the breather hole 213 when passing through it, allowing the accumulated oil to be discharged through the breather hole 213. This avoids the accumulation of oil increasing the weight of the piston 230, thereby suppressing the problem of decreased piston 230 sensitivity, reducing the probability that the valve plate 240 cannot close in time, reducing the risk of gas backflow and bringing lubricating oil to the intake passage 101, and reducing the risk of oil spraying and leakage from the intake valve 10.

[0059] In some preferred embodiments, the breather drain hole 213 is inclined downward, so that the accumulated oil entering the breather drain hole 213 can flow out under the action of gravity, which improves the efficiency of the breather drain hole 213 in draining accumulated oil, helps to reduce the risk of the piston 230 becoming heavier due to oil accumulation, reduces the risk of gas backflow and bringing lubricating oil to the intake passage 101, and reduces the risk of oil spraying and leakage from the intake valve 10.

[0060] In some preferred embodiments, there are multiple breathing oil drain holes 213, which are spaced apart and arranged around the circumference of the movable cavity 201. Of course, in other embodiments, there may be only one breathing oil drain hole 213.

[0061] In some preferred embodiments, the intake valve 10 further includes a valve stem 250 and a check spring 260. The valve stem 250 is movably connected to the piston 230 and is also connected to the valve plate 240, so that the piston 230 is connected to the valve plate 240 through the valve stem 250. The check spring 260 is sleeved on the valve stem 250 and abuts against the cover 220 and the valve plate 240 respectively. The check spring 260 is always in a compressed state, so that when the venting channel 103 is vented, the check spring 260 can be used to push the valve plate 240 to accelerate the speed at which the valve plate 240 closes the outlet channel 102, improve the sensitivity of the valve plate 240, and reduce the risk of gas backflow. In this embodiment, when the gas tank reaches the preset gas pressure value, the venting channel 103 is opened, and at the same time, the piston 230 pushes the valve plate 240 to move closer to the inlet of the outlet channel 102. At the moment of release through the venting channel 103, the pressure on the valve plate 240 decreases due to the reduced air pressure in the intake channel 101. This causes the check spring 260 to at least partially reset and push the valve plate 240 towards the inlet of the outlet channel 102. This increases the sensitivity of the valve plate 240 in sealing the inlet of the outlet channel 102, thereby increasing the sensitivity of the valve plate 240 in closing the outlet channel 102. This reduces the risk that the valve plate 240 may not close in time, reduces the risk of gas backflow and lubricating oil being carried into the intake channel 101, and thus reduces the risk of oil spraying and leakage from the intake valve 10.

[0062] In some preferred embodiments, the intake valve 10 further includes a sealing ring 270, which abuts against the cylinder 210 and the cover 220 respectively, so that the cover 220 is sealed to the cylinder 210 through the sealing ring 270, preventing oil from entering the movable chamber 201 through the gap between the cover 220 and the cylinder 210, suppressing the impact of oil accumulation on the weight of the piston 230, reducing the risk that the valve plate 240 cannot close in time, reducing the risk of gas backflow and carrying lubricating oil into the intake passage 101, and thus reducing the risk of oil spraying or leakage from the intake valve 10.

[0063] Furthermore, the inner wall of the movable groove 211 is provided with a mounting groove 214, and a portion of the sealing ring 270 is embedded in the mounting groove 214, which improves the positional stability of the sealing ring 270 and thus improves the sealing effect of the sealing ring 270. It can be understood that in some other embodiments, the mounting groove 214 may also be provided on the outer side of the cover member 220.

[0064] In some preferred embodiments, the piston 230 has a movable channel 2301, specifically, the piston rod 232 has a movable channel 2301. The valve stem 250 is located within the movable channel 2301 and is movably connected to the piston 230. The outer side of the valve stem 250 has multiple clearance surfaces 251, which are arranged circumferentially around the valve stem 250 and connected sequentially. A sliding edge 252 is formed between adjacent clearance surfaces 251. The sliding edge 252 is slidably connected to the inner wall of the movable channel 2301 to ensure the smooth sliding of the valve stem 250, avoiding the problem of the valve stem 250 wobbling, thereby avoiding the problem of the valve plate 240 being misaligned, and thus avoiding the problem of the valve plate 240 failing due to misalignment.

[0065] In this embodiment, by providing a clearance surface 251 on the valve stem 250, the weight of the valve stem 250 is reduced, the resistance of the valve plate 240 when closing the air outlet passage 102 upwards is reduced, and the sensitivity of the valve plate 240 is improved. That is, the timeliness of the valve plate 240 in sealing the inlet of the air outlet passage 102 is improved, reducing the risk of gas backflow and bringing lubricating oil into the air intake passage 101, thereby reducing the risk of oil spraying and leakage from the air intake valve 10. Furthermore, the absence of contact between the clearance surface and the inner wall of the active channel 2301 reduces the contact area between the valve stem 250 and the piston 230, increases the gap between the valve stem 250 and the piston 230, suppresses the problem of sludge formation between the valve stem 250 and the piston 230, and thus suppresses the problem of valve stem 250 jamming, resulting in a higher degree of smoothness of valve stem 250 movement. Due to the higher degree of smoothness of valve stem 250 movement, the resistance of valve plate 240 when closing the exhaust channel 102 upward is smaller, further improving the sensitivity of valve plate 240, suppressing the problem of valve plate 240 failing to close in time, reducing the risk of gas backflow and carrying lubricating oil into the intake channel 101, and thus reducing the risk of oil spraying and leakage from intake valve 10.

[0066] Furthermore, the valve stem 250 is made of aluminum alloy, which further reduces the weight of the valve stem 250, further improves the sensitivity of the valve plate 240, reduces the risk of gas backflow and bringing lubricating oil into the intake passage 101, and thus reduces the risk of oil spraying and leakage from the intake valve 10.

[0067] In some preferred embodiments, the peripheral wall of the plug 231 is provided with an embedded annular groove 2311, and the piston 230 also includes a sealing oil scraper ring 233. A portion of the sealing oil scraper ring 233 is embedded in the embedded annular groove 2311 and abuts against the plug 231, while another portion of the sealing oil scraper ring 233 abuts against the peripheral wall of the movable cavity 201, so that the sealing oil scraper ring 233 seals the gap between the plug 231 and the peripheral wall of the movable cavity 201, thereby dividing the movable cavity 201 into a first cavity and a second cavity that are isolated from each other. In this embodiment, when the sealing oil scraper ring 233 moves from bottom to top, the sealing oil scraper ring 233 scrapes excess lubricating oil into the breather drain hole 213, so that the excess lubricating oil is discharged through the breather drain hole 213, thereby improving the effect of draining accumulated oil from the movable cavity 201.

[0068] In some preferred embodiments, the check spring 260 is a conical spring, which increases the elastic force of the check spring 260 at the same compression amount, so that the check spring 260 can push the valve plate 240 faster when the discharge channel 103 is opened, thereby improving the sensitivity of the valve plate 240.

[0069] It is understandable that condensation will inevitably occur inside the intake passage 101 due to the collision between the venting airflow and the inner wall of the intake passage 101. As the intake valve 10 operates for longer periods, the condensation will gradually accumulate and drip onto the valve plate 240. When the operating temperature of the intake valve 10 is low, the condensation will freeze on the sealing surface of the valve plate 240, causing the valve plate 240 to fail to seal. In other words, even after prolonged operation, the valve plate 240 may still fail, leading to oil leakage and seepage. When the valve plate 240 seal fails, the intake valve 10 needs to be shut down for maintenance. Therefore, there is still room for improvement in the maintenance frequency of the intake valve 10.

[0070] To reduce the frequency of maintenance of the intake valve 10, in some preferred embodiments, a water-absorbing groove 104 is formed on the inner peripheral wall of the intake channel 101. The water-absorbing groove 104 is arranged circumferentially around the intake channel 101. The intake valve 10 also includes an adsorption member 300, which is fixedly embedded in the water-absorbing groove 104, so that the adsorption member 300 is arranged circumferentially around the inner peripheral wall of the intake channel 101. In this embodiment, when condensate in the intake channel 101 flows through the adsorption member 300, the adsorption member 300 adsorbs the condensate, preventing the condensate from continuing to flow, thereby preventing the condensate from falling onto the valve plate 240.

[0071] In some preferred embodiments, there are multiple water-absorbing grooves 104, which are spaced apart along the extension direction of the air intake channel 101. There are also multiple adsorption elements 300, which are fixedly embedded in the multiple water-absorbing grooves 104. It is understood that since condensation occurs at various points in the air intake channel 101, if an adsorption element 300 is only installed in one location, the condensation is more likely to accumulate and form larger water droplets. This prevents the adsorption element 300 from adsorbing all the condensation in time, causing some condensation to pass through the adsorption element 300 and continue flowing, resulting in some condensation adhering to the valve plate 240. To ensure timely adsorption of condensate, in this embodiment, multiple water-absorbing grooves 104 are arranged along the extending direction of the air intake channel 101, and multiple adsorption elements 300 are fixedly embedded in the multiple water-absorbing grooves 104 in a corresponding manner. This results in multiple adsorption elements 300 being provided in the air intake channel 101, thereby adsorbing condensate at multiple locations in the air intake channel 101, suppressing the problem of condensate accumulation, and ensuring that condensate can be adsorbed in a timely manner, thus avoiding the problem of some condensate adhering to the valve plate 240.

[0072] In some preferred embodiments, the absorbent 300 is a cotton body, which enables it to absorb water. Because the cotton body has an intertwined, flocculent structure, the airflow cannot disperse the absorbent 300, thus avoiding the problem of the absorbent 300 contaminating the airflow. Of course, the absorbent 300 can also be an activated carbon body, a microporous ceramic body, or other existing absorbent bodies with a microporous structure.

[0073] Furthermore, a portion of the adsorbent 300 protrudes beyond the water absorption groove 104, positioning a portion of the adsorbent 300 within the flow path of the condensate. In this embodiment, even if the adsorbent 300 becomes saturated, because a portion of the adsorbent 300 is positioned within the flow path of the condensate, the saturated adsorbent 300 can still block the flowing condensate. This means the saturated adsorbent 300 can intercept the condensate, delaying the freezing of the sealing surface of the valve plate 240 and further reducing the maintenance frequency of the intake valve 10.

[0074] It is understandable that the space within the air intake channel 101 is relatively small, making the installation of the adsorption component 300 more difficult. To reduce the installation difficulty of the adsorption component 300, in some preferred embodiments, the air intake valve 10 also includes a mounting spring 400. The adsorption component 300 is wrapped around the mounting spring 400, so that the mounting spring 400 is completely covered by the cotton body, and the mounting spring 400 is engaged in the water absorption groove 104. In this embodiment, the mounting spring 400 is inserted into the water absorption groove 104 using spring clip pliers, so that the adsorption component 300 is fixed in the water absorption groove 104, reducing the installation difficulty of the adsorption component 300 and improving the ease of installation. When the condensate is saturated, the mounting spring 400 and the adsorption component 300 can be removed using spring clip pliers, and then the mounting spring 400, wrapped with the dry adsorption component 300, can be inserted into the water absorption groove 104, improving the convenience and efficiency of maintenance of the air intake valve 10.

[0075] Example 3:

[0076] This embodiment provides a compressor based on the above embodiments.

[0077] A compressor includes an air filter, a pipe, an intake valve, and a housing. The air filter is connected to the inlet of the intake valve via the pipe, and the outlet of the intake valve is connected to the housing.

[0078] Please see Figures 1-3 As shown, the valve body 100 has an interconnected air intake channel 101 and an air outlet channel 102. The extending directions of the air intake channel 101 and the air outlet channel 102 form an angle, preferably but not limited to 90°. It can be understood that the angle between the extending directions of the air intake channel 101 and the air outlet channel 102 can also be 45°, 60°, 100°, or other angles.

[0079] Furthermore, a venting channel 103 is formed inside the valve body 100. The inlet of the venting channel 103 is located inside and adjacent to the inlet of the intake channel 101, so that the inlet of the venting channel 103 is vertically offset from the valve plate 240. The inlet of the venting channel 103 faces the inlet of the intake channel 101, that is, the inlet of the venting channel 103 is directly opposite the inlet of the intake channel 101, so that the gas entering the intake channel 101 can enter the venting channel 103 more quickly. The outlet of the venting channel 103 extends to the outside of the valve body 100, and the gas can be discharged to the outside through the venting channel 103 to achieve the function of depressurizing the intake valve 10.

[0080] In this embodiment, when the gas pressure in the gas storage tank reaches a preset value, the inlet of the outlet channel 102 is closed, the switch valve opens the vent channel 103, and the gas entering the intake channel 101 enters through the inlet of the vent channel 103, and is then discharged to the outside of the valve body 100 through the vent channel 103. That is, the vent gas flows out through the vent hole 121, thereby achieving the effect of depressurizing the intake valve 10. It can be understood that the air filter is connected to the inlet of the intake channel 101 through a pipe, and the gas output from the pipe is the gas entering the intake channel 101.

[0081] In this invention, the inlet of the vent channel 103 is located within and adjacent to the inlet of the intake channel 101. This allows gas to be discharged more quickly through the vent channel 103 after entering the intake channel 101, reducing the amount of gas colliding with the inner wall of the intake channel 101 and suppressing the generation of condensate. Furthermore, the inlet of the vent channel 103 is vertically offset from the valve plate 240, preventing the venting airflow from carrying condensate above the valve body 100 and reducing the risk of condensate falling onto the sealing surface of the valve plate 240. Thus, both the generation of condensate and the risk of condensate falling onto the sealing surface of the valve plate 240 are suppressed, resulting in a lower risk of condensate adhering to the valve plate 240 and consequently a lower risk of valve plate 240 failure due to condensate freezing. Because the risk of valve plate 240 failure is low, the risk of gas backflow carrying lubricating oil into the intake channel 101 is also low, reducing the risk of oil spraying and leakage from the intake valve 10.

[0082] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed 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 invention according to the specific circumstances.

[0083] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0084] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0085] In this invention, unless otherwise expressly specified and limited, "above or below" a first feature may 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" the first 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 first 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.

[0086] Although the description of the invention has been given in conjunction with the specific embodiments described above, it will be apparent to those skilled in the art that many substitutions, modifications, and variations can be made based on the foregoing. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A valve body, characterized in that, The valve body (100) has an inlet channel (101) and an outlet channel (102) that are connected to each other. The extension direction of the inlet channel (101) and the extension direction of the outlet channel (102) are at an angle. The valve body (100) also has a venting channel (103) inside. The inlet of the venting channel (103) is located inside the air intake channel (101) and adjacent to the inlet of the air intake channel (101). The inlet of the venting channel (103) faces the inlet of the air intake channel (101). The outlet of the venting channel (103) extends to the outside of the valve body (100). The air intake channel (101) has a water absorption groove (104) on its inner peripheral wall. The water absorption groove (104) is arranged around the air intake channel (101) in a circumferential direction. The air intake valve (10) also includes an adsorption element (300). The adsorption element (300) is fixedly embedded in the water absorption groove (104) so ​​that the adsorption element (300) is arranged around the inner peripheral wall of the air intake channel (101). A portion of the adsorption element (300) protrudes outside the water absorption groove (104) so ​​that a portion of the adsorption element (300) is arranged on the flow path of the condensate. The valve body (100) includes a main body (110) and a venting part (120). The air inlet passage (101) and the air outlet passage (102) are both formed in the main body (110). The main body (110) also has a venting hole (111). The venting part (120) is connected to the inner wall of the air intake channel (101) and together they form a venting hole (121). The inlet of the venting hole (121) is set facing the inlet of the air intake channel (101). The venting hole (121) is connected to the venting hole (111) and together they form the venting channel (103).

2. An intake valve, characterized in that, Including the valve body (100) of claim 1, the air inlet valve (10) further includes a check valve assembly (200) installed in the air outlet passage (102) for sealing the inlet of the air outlet passage (102).

3. The intake valve according to claim 2, characterized in that, The check valve assembly (200) includes a cylinder (210) located within the outlet passage (102) and connected to the valve body (100), and the cylinder (210) has a movable groove (211) facing the inlet passage (101).

4. The intake valve according to claim 3, characterized in that, An oil guide groove (212) is formed at one end of the cylinder body (210) adjacent to the intake passage (101), and the oil guide groove (212) extends to the movable groove (211) and the outer peripheral wall of the cylinder body (210); and / or, The cylinder (210) has a breathing oil drain hole (213) on its outer side, and the breathing oil drain hole (213) is located at one end of the cylinder (210) near the air intake channel (101). The breathing oil drain hole (213) is connected to the movable groove (211).

5. The intake valve according to claim 4, characterized in that, The breathing oil drain hole (213) is set at an angle downward.

6. The intake valve according to claim 3, characterized in that, The check valve assembly (200) further includes: The cover (220) is located in the movable groove (211) and is sealed to one end of the cylinder (210) near the air intake channel (101). The cover (220) and the cylinder (210) together form a movable cavity (201). The cover (220) has a clearance hole (221) that communicates with the movable cavity (201). A piston (230), part of which is movably disposed within the movable cavity (201), and the piston (230) also movably passing through the clearance hole (221); and A valve plate (240), located outside the active chamber (201) and connected to the piston (230), is used to close the inlet of the air outlet passage (102).

7. The intake valve according to claim 6, characterized in that, The check valve assembly (200) further includes a valve stem (250) and a check spring (260). The valve stem (250) is movably connected to the piston (230) and is also connected to the valve plate (240), so that the piston (230) is connected to the valve plate (240) through the valve stem (250). The check spring (260) is sleeved on the valve stem (250) and abuts against the cover (220) and the valve plate (240) respectively, for pushing the valve plate (240) to seal the inlet of the air outlet channel (102); and / or, The check valve assembly (200) further includes a sealing ring (270), which abuts against the cylinder body (210) and the cover (220) respectively, so that the cover (220) is sealed to the cylinder body (210) through the sealing ring (270).

8. The intake valve according to claim 7, characterized in that, The piston (230) has a movable channel (2301), and the valve stem (250) is located in the movable channel (2301) and is movably connected to the piston (230). The valve stem (250) has multiple clearance surfaces (251) on its outer side. The multiple clearance surfaces (251) are arranged around the valve stem (250) in a circumferential manner and connected in sequence. A sliding edge (252) is formed between two adjacent clearance surfaces (251). The sliding edge (252) is slidably connected to the inner wall of the movable channel (2301).

9. A compressor, characterized in that, Includes the intake valve (10) according to any one of claims 2 to 8.

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