One-way valve with leakage-proof structure

Abstract

The one-way valve comprises a valve body, an end cover is movably installed on the right side of the valve body, conveying through holes are formed in the middle of the end cover and the middle of the valve body, a spring is installed on the left side of an inner cavity of the end cover, and the right side end of the valve body is embedded in the left side of the inner cavity of the end cover. A valve element is installed on the right side of an inner cavity of the valve body, and the right side of the valve element is connected with the left side of a spring. By means of the filtering mechanism, in the liquid conveying process, the purity of conveyed liquid can be guaranteed, impurities in the liquid can be treated, and it is avoided that due to the fact that the impurities in the liquid are too many, the impurities in the liquid in the later period are too many, and the later use efficiency is affected.

Description

Technical Field

[0001] The invention relates to the technical field of one-way valves, in particular to a one-way valve with an anti-leakage structure. Background Art

[0002] At present, the one-way valve, also known as the non-return valve or check valve, is a control valve in which the fluid can only flow along the water inlet, but the medium at the water outlet cannot flow back. The one-way valve is used in hydraulic systems to prevent the reverse flow of oil flow, or in pneumatic systems to prevent the reverse flow of compressed air;

[0003] Although the one-way valve plays an important role in various fields, its existing technology still has some defects and shortcomings, such as design defects;

[0004] Design defects are a common cause of one-way valve failure, which include unreasonable valve structure, improper material selection, and insufficient seal design. For example, an overly complex valve structure may increase the difficulty of processing, thereby reducing product quality. Improper material selection may cause corrosion or wear of the valve under specific working conditions. High requirements for seal design and processing may lead to leakage problems due to unsatisfactory processing technology. Designers should fully consider factors such as the working environment, fluid properties, and service life in the early stages of design, and make reasonable structural design and material selection to avoid these problems. Summary of the invention

[0005] The object of the present invention is to provide a one-way valve with an anti-leakage structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a one-way valve with an anti-leakage structure, comprising a valve body, an end cover is movably installed on the right side of the valve body, a delivery through hole is opened in the end cover and the middle of the valve body, a spring is installed on the left side of the inner cavity of the end cover, the right end of the valve body is embedded in the left side of the inner cavity of the end cover, a gasket is arranged around the right side of the valve body, a valve core is installed on the right side of the inner cavity of the valve body, the right side of the valve core is connected to the left side of the spring, an O-ring is arranged around the left side of the end cover, and a sleeve is installed on the outside of the valve core;

[0007] It also includes filtering mechanisms and abnormality monitoring mechanisms.

[0008] Preferably, the sealing ring and the O-ring are both made of rubber material, and the spring is made of spring steel material.

[0009] Preferably, the dimensions around the right side of the valve body are smaller than the dimensions around the left side of the end cover, and the dimensions around the left side of the valve body and the right side of the end cover are the same.

[0010] Preferably, the filtering mechanism includes an installation groove, a processing frame, a filter mesh plate, an installation spring, an installation slider, an installation slide groove and a pressure controller, fixed frames are installed on both sides of the inner cavity of the conveying through hole, processing frames are movably installed inside the fixed frames, filter mesh plates are installed on both sides of the inner cavity of the processing frame, and there is no shielding structure on both sides of the inner cavity of the fixed frame.

[0011] Preferably, installation grooves are provided at the top and bottom of the inner cavity of the fixed frame, and installation slides are installed at the top and bottom of the processing frame, and the installation slides are slidably connected to the inner cavity of the installation groove, and installation springs are installed on both sides of the installation slides, and one end of the installation spring away from the installation slide is slidably connected to the inner cavity of the installation groove, and pressure controllers are installed on both sides of the inner cavity of the installation groove, and the pressure controllers are electrically connected to an external control center.

[0012] Preferably, the mounting springs are made of spring steel, rubber sheets are installed on the top and bottom ends of both sides of the fixing frame, and the end of the rubber sheet away from the fixing frame is connected to the inside of the conveying through hole and covers the outside of the mounting slide groove.

[0013] Preferably, the abnormal monitoring mechanism includes a movable baffle, a monitoring slot, a folding airbag, an extrusion block, a touch switch, an installation spring rod, a fixed spring and a fixed ring plate. Monitoring slots are provided at the bottom ends of both sides of the inner cavity of the conveying through hole, and a plurality of fixed ring plates are installed on the upper ends around the inner cavity of the monitoring slot. A movable baffle is provided at the upper end of the inner cavity of the monitoring slot, and a plurality of fixed springs are installed on the top of the fixed ring plate. The top of the fixed spring is connected to the bottom end of the movable baffle.

[0014] Preferably, a folding airbag is installed around the bottom end of the fixed ring plate, an extrusion block is installed at the bottom end of the folding airbag, a touch switch is installed at the bottom end of the inner cavity of the monitoring slot, the touch switch is electrically connected to the external control center, and an installation spring rod is installed around the outside of the extrusion block, and the bottom end of the installation spring rod is connected to the bottom end of the inner cavity of the monitoring slot.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention introduces the test medium from the left delivery through hole, and the pressure gradually increases to reach the opening pressure. The valve core moves to the right, and the test medium can pass through the valve core and go out from the right side. If the right medium flows to the left, the valve core will move to the left under the action of the spring until it contacts the sealing ring, promoting sealing and achieving the check function. The gasket between the sleeve and the valve body plays the role of primary sealing, and the O-ring between the valve body and the end cover plays the role of secondary sealing, so the leakage problem of the one-way valve is solved;

[0017] 2. The present invention can ensure the purity of the conveyed liquid and process the impurities in the liquid through the filtering mechanism during the process of conveying the liquid, thereby avoiding excessive impurities in the liquid, which will lead to excessive impurities in the liquid in the later stage and affect the efficiency in the later use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Provides an overall structural diagram for an embodiment of the present invention;

[0019] Figure 2 A structural diagram of a right side cross-section of an end cover provided by an embodiment of the present invention;

[0020] Figure 3 The embodiment of the present invention provides Figure 2 The enlarged structure diagram at B in the middle;

[0021] Figure 4 The embodiment of the present invention provides Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 5 A three-dimensional structural diagram of a processing frame provided in an embodiment of the present invention.

[0023] In the figure: 1. valve body; 2. sealing ring; 3. O-ring; 4. sleeve; 5. valve core; 6. gasket; 7. spring; 8. end cover; 9. fixing frame; 10. conveying through hole; 11. filtering mechanism; 1101. installation through groove; 1102. processing frame; 1103. filter screen; 1104. installation spring; 1105. installation slider; 1106. installation slide groove; 1107. pressure controller; 12. abnormal monitoring mechanism; 1201. movable baffle; 1202. monitoring notch; 1203. folding airbag; 1204. extrusion block; 1205. touch switch; 1206. installation spring rod; 1207. fixing spring; 1208. fixing ring plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-5The present invention provides a technical solution: a one-way valve with an anti-leakage structure, comprising a valve body 1, an end cover 8 is movably installed on the right side of the valve body 1, a delivery through hole 10 is opened in the middle of the end cover 8 and the valve body 1, a spring 7 is installed on the left side of the inner cavity of the end cover 8, the right end of the valve body 1 is embedded in the left side of the inner cavity of the end cover 8, a gasket 6 is arranged around the right side of the valve body 1, a valve core 5 is installed on the right side of the inner cavity of the valve body 1, the right side of the valve core 5 is connected to the left side of the spring 7, an O-ring 3 is arranged around the left side of the end cover 8, and a sleeve 4 is installed on the outside of the valve core 5;

[0026] It also includes a filtering mechanism 11 and an abnormality monitoring mechanism 12.

[0027] The sealing ring 2 and the O-ring 3 are both made of rubber material, and the spring 7 is made of spring steel material; thus, the spring steel material increases the elasticity and life of the spring 7 during use.

[0028] The dimensions around the right side of the valve body 1 are smaller than the dimensions on the left side of the end cover 8, and the dimensions of the left side of the valve body 1 and the right side of the end cover 8 are the same; the test medium is introduced into the through hole 10 on the left, and the pressure gradually increases to reach the opening pressure, the valve core 5 moves to the right, and the test medium can pass through the valve core 5 and go out from the right side. If the medium on the right side flows to the left, the valve core 5 will move to the left under the action of the spring 7 until it contacts the sealing ring 2, thereby promoting sealing and achieving the check function. The gasket 6 between the sleeve 4 and the valve body 1 plays a primary sealing role, and the O-ring 3 between the valve body 1 and the end cover 8 plays a secondary sealing role, and the leakage problem of the one-way valve is solved.

[0029] The filter mechanism 11 includes an installation slot 1101, a processing frame 1102, a filter screen plate 1103, an installation spring 1104, an installation slider 1105, an installation slide slot 1106 and a pressure controller 1107. Fixed frames 9 are installed on both sides of the inner cavity of the delivery through hole 10. The processing frame 1102 is movably installed inside the fixed frame 9. Filter screen plates 1103 are installed on both sides of the inner cavity of the processing frame 1102. There is no shielding structure on both sides of the inner cavity of the fixed frame 9.

[0030] The top and bottom of the inner cavity of the fixing frame 9 are provided with mounting grooves 1106, the top and bottom of the processing frame 1102 are provided with mounting sliders 1105, the mounting sliders 1105 are slidably connected with the inner cavity of the mounting grooves 1106, mounting springs 1104 are installed on both sides of the mounting sliders 1105, one end of the mounting spring 1104 away from the mounting sliders 1105 is slidably connected with the inner cavity of the mounting grooves 1106, pressure controllers 1107 are installed on both sides of the inner cavity of the mounting grooves 1106, and the pressure controllers 1107 are electrically connected with the external control center;

[0031] The specific implementation method is as follows: during use, impurities in the liquid are filtered through the processing frame 1102 and the filter screen 1103 inside the fixed frame 9. If there are too many impurities in the liquid during transportation, they will accumulate outside the filter screen 1103. In this way, the processing frame 1102 is pushed more, which will drive the mounting slide 1105 to slide inside the mounting slide groove 1106, so that the mounting slide 1105 is in contact and squeezed with the outside of the pressure controller 1107. The value set in advance by the pressure controller 1107 triggers the alarm of the external control center to tell the staff that there are too many impurities and they need to be processed. In the process of conveying liquid, the purity of the conveyed liquid can be guaranteed, and the impurities in the liquid can be processed to avoid excessive impurities in the liquid, which will lead to excessive impurities in the liquid in the later stage and affect the efficiency in the later use.

[0032] The mounting springs 1104 are made of spring steel, and rubber sheets are installed at the top and bottom of both sides of the fixing frame 9, and the end of the rubber sheet away from the fixing frame 9 is connected to the inside of the conveying through hole 10 and covers the outside of the mounting slide groove 1106;

[0033] The specific implementation is as follows: the elasticity and life of the installation spring 1104 are increased by using spring steel material, and the sealing of the interior of the installation slide groove 1106 is increased by using a rubber sheet.

[0034] The abnormal monitoring mechanism 12 includes a movable baffle 1201, a monitoring slot 1202, a folding airbag 1203, an extrusion block 1204, a touch switch 1205, an installation spring rod 1206, a fixed spring 1207 and a fixed ring plate 1208. The bottom ends of both sides of the inner cavity of the conveying through hole 10 are provided with monitoring slots 1202, and a plurality of fixed ring plates 1208 are installed on the upper ends of the inner cavity of the monitoring slot 1202. The upper end of the inner cavity of the monitoring slot 1202 is provided with a movable baffle 1201, and a plurality of fixed springs 1207 are installed on the top of the fixed ring plate 1208. The top of the fixed spring 1207 is connected to the bottom end of the movable baffle 1201, and a plurality of notches are provided around the outer periphery of the movable baffle 1201, and blocking blocks are installed at the relative positions of the upper ends of the inner cavity of the monitoring slot 1202 located at the notches.

[0035] A folding airbag 1203 is installed around the bottom of the fixed ring plate 1208, an extrusion block 1204 is installed at the bottom of the folding airbag 1203, a touch switch 1205 is installed at the bottom of the inner cavity of the monitoring slot 1202, and the touch switch 1205 is electrically connected to the external control center. A mounting spring rod 1206 is installed around the outside of the extrusion block 1204, and the bottom of the mounting spring rod 1206 is connected to the bottom of the inner cavity of the monitoring slot 1202;

[0036] The specific implementation method is as follows: when an abnormality occurs during the transportation process, the water pressure inside the transportation hole 10 will increase, which will push the movable baffle 1201 to move downward, separating the recess from the block, and the water will be transported to the inside of the folding airbag 1203 through the recess, causing the folding airbag 1203 to expand and drive the extrusion block 1204 to move downward. The extrusion block 1204 contacts the top of the touch switch 1205 and triggers the external control center to tell the staff that an abnormality has occurred during the liquid transportation and that timely processing is required to avoid the staff being unable to promptly discover the abnormality during the liquid transportation process, leading to safety problems.

[0037] Working principle: In the present invention, the test medium is introduced from the left delivery through hole 10, and the pressure gradually increases to reach the opening pressure. The valve core 5 moves to the right, and the test medium can pass through the valve core 5 and go out from the right side. If the right medium flows to the left, the valve core 5 will move to the left under the action of the spring 7 until it contacts the sealing ring 2, promoting sealing and achieving the check function. The gasket 6 between the sleeve 4 and the valve body 1 plays the role of primary sealing, and the O-ring 3 between the valve body 1 and the end cover 8 plays the role of secondary sealing, and the leakage problem of the one-way valve is solved;

[0038] The original scheme has a metal seal between the sleeve and the valve body. The principle is to normalize the sleeve to increase its hardness, so that the sleeve and the valve body materials have a hardness difference to achieve a sealing effect. The improved scheme is that the sleeve 4 and the valve body 1 are made of the same material, and no heat treatment is required. A PTFE gasket 6 is added between the sleeve 4 and the valve body 1; a groove is dug on the outer surface of the valve body 1, and an O-ring 3 is added to achieve a secondary sealing effect;

[0039] During use, impurities in the liquid are filtered through the processing frame 1102 and the filter screen 1103 inside the fixed frame 9. If there are too many impurities in the liquid during transportation, they will accumulate outside the filter screen 1103. In this way, the processing frame 1102 is pushed more, which will drive the installation slide 1105 to slide inside the installation slide groove 1106, so that the installation slide 1105 is in contact and squeezed with the outside of the pressure controller 1107. The value set in advance by the pressure controller 1107 triggers the alarm of the external control center to tell the staff that there are too many impurities and they need to be processed. In the process of conveying liquid, the purity of the conveyed liquid can be guaranteed, and the impurities in the liquid can be processed to avoid excessive impurities in the liquid, which will lead to excessive impurities in the liquid in the later stage and affect the efficiency in the later stage.

[0040] When an abnormality occurs during the transportation process, the water pressure inside the transportation hole 10 will increase, which will push the movable baffle 1201 to move downward, separating the recess from the blockage. The water will then be transported through the recess to the inside of the folding airbag 1203, causing the folding airbag 1203 to expand and drive the extrusion block 1204 to move downward. The extrusion block 1204 contacts the top of the touch switch 1205 and triggers the external control center, telling the staff that an abnormality has occurred during the liquid transportation and that timely processing is required to avoid the staff being unable to promptly discover abnormalities during the liquid transportation process, leading to safety problems.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A one-way valve with an anti-leakage structure, comprising a valve body (1), characterized in that: An end cover (8) is movably mounted on the right side of the valve body (1), and a delivery through hole (10) is provided in the middle of the end cover (8) and the valve body (1). A spring (7) is mounted on the left side of the inner cavity of the end cover (8), and the right side end of the valve body (1) is embedded in the left side of the inner cavity of the end cover (8). A gasket (6) is arranged around the right side of the valve body (1), and a valve core (5) is mounted on the right side of the inner cavity of the valve body (1). The right side of the valve core (5) is connected to the left side of the spring (7), and an O-ring (3) is arranged around the left side of the end cover (8). A sleeve (4) is sleeved and mounted on the outside of the valve core (5); It also includes a filtering mechanism (11) and an abnormality monitoring mechanism (12).

2. A one-way valve with an anti-leakage structure according to claim 1, characterized in that: The sealing ring (2) and the O-ring (3) are both made of rubber material, and the spring (7) is made of spring steel material.

3. A one-way valve with an anti-leakage structure according to claim 1, characterized in that: The dimensions of the right side of the valve body (1) are smaller than the dimensions of the left side of the end cover (8), and the dimensions of the left side of the valve body (1) and the right side of the end cover (8) are the same.

4. A one-way valve with an anti-leakage structure according to claim 1, characterized in that: The filtering mechanism (11) comprises a mounting groove (1101), a processing frame (1102), a filter screen (1103), a mounting spring (1104), a mounting slider (1105), a mounting slide groove (1106) and a pressure controller (1107); fixed frames (9) are mounted on both sides of the inner cavity of the conveying through hole (10); a processing frame (1102) is movably mounted inside the fixed frame (9); filter screens (1103) are mounted on both sides of the inner cavity of the processing frame (1102); and there is no shielding structure on both sides of the inner cavity of the fixed frame (9).

5. A one-way valve with an anti-leakage structure according to claim 4, characterized in that: The top and bottom of the inner cavity of the fixing frame (9) are both provided with an installation groove (1106); the top and bottom of the processing frame (1102) are both provided with an installation slider (1105); the installation slider (1105) is slidably connected to the inner cavity of the installation groove (1106); installation springs (1104) are installed on both sides of the installation slider (1105); one end of the installation spring (1104) away from the installation slider (1105) is slidably connected to the inner cavity of the installation groove (1106); pressure controllers (1107) are installed on both sides of the inner cavity of the installation groove (1106); and the pressure controller (1107) is electrically connected to an external control center.

6. A one-way valve with an anti-leakage structure according to claim 5, characterized in that: The mounting springs (1104) are made of spring steel, and rubber sheets are installed at the top and bottom ends of both sides of the fixing frame (9), and the end of the rubber sheet away from the fixing frame (9) is connected to the inside of the conveying through hole (10) and covers the outside of the mounting slide groove (1106).

7. A one-way valve with an anti-leakage structure according to claim 1, characterized in that: The abnormality monitoring mechanism (12) comprises a movable baffle (1201), a monitoring notch (1202), a folding airbag (1203), an extrusion block (1204), a touch switch (1205), a mounting spring rod (1206), a fixing spring (1207) and a fixing ring plate (1208). The bottom ends of both sides of the inner cavity of the conveying through hole (10) are provided with monitoring notches (1202), a plurality of fixing ring plates (1208) are installed around the upper ends of the inner cavity of the monitoring notch (1202), a movable baffle (1201) is arranged at the upper end of the inner cavity of the monitoring notch (1202), a plurality of fixing springs (1207) are installed at the top ends of the fixing ring plates (1208), and the top ends of the fixing springs (1207) are connected to the bottom ends of the movable baffle (1201).

8. A one-way valve with an anti-leakage structure according to claim 7, characterized in that: A folding airbag (1203) is installed around the bottom end of the fixed ring plate (1208), an extrusion block (1204) is installed at the bottom end of the folding airbag (1203), a touch switch (1205) is installed at the bottom end of the inner cavity of the monitoring slot (1202), and the touch switch (1205) is electrically connected to an external control center. An installation spring rod (1206) is installed around the outside of the extrusion block (1204), and the bottom end of the installation spring rod (1206) is connected to the bottom end of the inner cavity of the monitoring slot (1202).

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