One-way valve with feedback function

Abstract

The one-way valve with the feedback function comprises a one-way valve body, a liquid inlet end is arranged on one side of the one-way valve body, a liquid outlet end is arranged on the other side of the one-way valve body, and end covers are arranged on the outer sides of the liquid inlet end and the liquid outlet end in a sleeved mode. A magnet is fixedly installed at the bottom of the magnetic induction sensor and located in the one-way valve body. The magnetic induction sensor is arranged to be matched with the magnet, so that the internal operation state of the one-way valve is macroscopically monitored, and a worker can know whether the valve plate is in an open state or a closed state or not, so that the one-way valve main body cannot handle faults in time when the faults occur; the one-way valve can be installed on the outer side of the liquid inlet end and the outer side of the liquid outlet end by matching the threaded groove in the end cover with the threaded block, so that the one-way valve is more convenient and rapid to disassemble and assemble under the condition that normal operation of the one-way valve is not affected, and when a fault occurs in the monitoring process of the magnetic induction sensor, a worker can rapidly complete response and maintenance.

Description

Technical Field

[0001] The utility model belongs to the technical field of check valves, and particularly relates to a check valve with feedback. Background Art

[0002] A check valve is a valve in which the fluid can only flow along the inlet, and the medium at the outlet cannot flow back, commonly known as a check valve. A check valve is also called a non-return valve or a reflux valve. It is used in a hydraulic system to prevent the reverse flow of oil, or in a pneumatic system to prevent the reverse flow of compressed air. There are two types of check valves: straight-through type and right-angle type. The straight-through check valve is installed on the pipeline by threaded connection. The right-angle check valve has three forms: threaded connection, plate connection and flange connection; there are two types of check valves: straight-through type and right-angle type. The straight-through check valve is installed on the pipeline by threaded connection. The right-angle check valve has three forms: threaded connection, plate connection and flange connection. A pilot-operated check valve is also called a locking valve or a pressure-holding valve. It is the same as a check valve and is used to prevent the reverse flow of oil. However, when the reverse flow of oil is required in a hydraulic circuit, the control oil pressure can be used to open the check valve so that the oil can flow in both directions. The pilot-operated check valve uses a conical valve core, so it has good sealing performance. When a closed oil circuit is required, this valve can be used as a one-way lock for the oil circuit to play a pressure-holding role. The leakage modes of the control oil of the pilot-operated check valve are internal leakage type and external leakage type. The internal leakage type can be used in an oil circuit without back pressure at the reverse oil flow outlet; otherwise, the external leakage type is required to reduce the control oil pressure.

[0003] The prior art has the following defects or problems: It does not have a feedback function, the internal operation state of the check valve cannot be monitored macroscopically, and it is impossible to know whether the valve plate is in the open state or the closed state, so it is impossible to handle it in time when the check valve fails.

[0004] It should be noted that the above content belongs to the technical cognition scope of the inventor and does not necessarily constitute the prior art. Summary of the Utility Model

[0005] In order to solve the above problems, the purpose of the utility model is to provide a check valve with feedback, so as to solve the problems that the existing check valve does not have a feedback function, the internal operation state of the check valve cannot be monitored macroscopically, and it is impossible to know whether the valve plate is in the open state or the closed state, so it is impossible to handle it in time when the check valve fails.

[0006] To achieve the above purpose, the utility model provides a check valve with feedback, including a check valve main body, an inlet end is arranged on one side of the check valve main body, an outlet end is arranged on the other side of the check valve main body, and end caps are sleeved outside both the inlet end and the outlet end;

[0007] A magnetic induction sensor is inserted into the end face of the check valve main body, and a magnet is fixedly installed inside the check valve main body at the bottom of the magnetic induction sensor.

[0008] In one example, the one-way valve body is specifically formed by connecting a first valve housing and a second valve housing. A threaded connection end is fixedly connected to one side of the second valve housing. A groove is formed on the inner side wall of the first valve housing, and the size is the same as that of the threaded connection end and there is a threaded connection. The first valve housing and the second valve housing are movably connected through the cooperation of the threaded connection end and the groove, and a valve cavity is formed inside.

[0009] In one example, a valve plate is movably installed inside the valve cavity near the liquid inlet end, and the valve plate is located on one side of the magnet.

[0010] In one example, there is an electrical connection between the magnetic induction sensor and the magnet, and the magnetic induction sensor is connected to an external control system through wireless data.

[0011] In one example, a liquid hole is formed through the end cover, and the size is the same as that of the liquid guiding holes inside the liquid inlet end and the liquid outlet end;

[0012] Threaded blocks are fixedly connected to the outer side walls of the liquid inlet end and the liquid outlet end. Threaded grooves are provided on the inner wall of the end cover. There is a threaded connection between the threaded grooves and the threaded blocks. The end cover is threadedly connected to the outer sides of the liquid inlet end and the liquid outlet end through the threaded blocks.

[0013] In one example, clamping blocks are fixedly connected to the outer sides of the liquid inlet end and the liquid outlet end at the bottom of the threaded blocks. A clamping groove is formed on the inner side wall of the end cover. The clamping grooves are arranged in an annular array along the center of the end cover and are provided with several groups. The sizes of each group of clamping grooves are the same as those of the clamping blocks.

[0014] In one example, limiting blocks are arranged in an annular array along the center on the inner side wall of the end cover outside the clamping grooves.

[0015] The one-way valve with feedback proposed by the present utility model can bring the following beneficial effects:

[0016] 1. For the one-way valve with feedback, by setting a magnetic induction sensor in cooperation with a magnet, a magnetic induction sensor is installed at the position of the valve plate inside the one-way valve body. Through the magnet located on one side of the valve plate and connected to the magnetic induction sensor, electromagnetic position feedback is realized when the valve plate is opened. When the opening degree of the valve plate reaches the requirement, the magnetic induction sensor receives the signal, and different liquid inlet states can be analyzed and a response can be quickly completed, so that the internal operation state of the one-way valve can be macroscopically monitored. The staff can understand whether the valve plate is in the open state or the closed state, so as to be able to handle it in time when a failure occurs in the one-way valve body.

[0017] 2. The one-way valve with feedback can be installed on the outer sides of the liquid inlet end and the liquid outlet end by matching the internal thread groove of the end cover with the thread block, and stable connection can be completed through the clamping block and the clamping groove. To avoid excessive sleeving, a limiting block is added. In addition, the one-way valve body is installed by the first valve shell and the second valve shell through the thread connection end, making the disassembly and assembly of the one-way valve more convenient and fast without affecting its normal operation. When a fault occurs during the monitoring process of the magnetic induction sensor, the staff can quickly complete the response and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and form a part of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0019] Figure 1 is a three-dimensional schematic diagram of the overall structure of a one-way valve with feedback according to the present invention;

[0020] Figure 2 is a sectional schematic diagram of the overall structure of a one-way valve with feedback according to the present invention;

[0021] Figure 3 is a three-dimensional sectional schematic diagram of the overall structure of a one-way valve with feedback according to the present invention;

[0022] Figure 4 is a schematic diagram of the end cover structure of a one-way valve with feedback according to the present invention;

[0023] Figure 5 is a three-dimensional schematic diagram of the main body structure of a one-way valve with feedback according to the present invention.

[0024] In the figure: 1. One-way valve body; 101. First valve shell; 102. Second valve shell; 103. Thread connection end; 104. Valve cavity; 105. Valve plate; 2. Liquid inlet end; 3. Liquid outlet end; 4. End cover; 401. Liquid hole; 402. Thread groove; 403. Limiting block; 404. Clamping groove; 5. Magnetic induction sensor; 501. Magnet; 6. Thread block; 7. Clamping block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to more clearly illustrate the overall concept of the present invention, the following is a detailed description by way of example in conjunction with the drawings of the specification.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0028] In the present utility model, unless otherwise clearly specified and defined, terms such as "installed", "connected", "joined", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. In the description of this specification, the description referring to terms such as "one solution", "some solutions", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the solution or example are included in at least one solution or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same solution or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more solutions or examples.

[0030] As Figures 1 to 5 shown, an embodiment of the present utility model provides a check valve with feedback, which includes a check valve body 1. A liquid inlet end 2 is provided on one side of the check valve body 1, and a liquid outlet end 3 is provided on the other side of the check valve body 1. End caps 4 are sleeved outside both the liquid inlet end 2 and the liquid outlet end 3;

[0031] One end face of the one-way valve body 1 is plugged with a magnetic induction sensor 5, and a magnet 501 is fixedly installed at the bottom of the magnetic induction sensor 5 inside the one-way valve body 1.

[0032] Specifically, the one-way valve body 1 is specifically composed of a first valve housing 101 and a second valve housing 102 connected. One side of the second valve housing 102 is fixedly connected with a threaded connection end 103. A groove body is provided on the inner side wall of the first valve housing 101, and it has the same size as the threaded connection end 103 and there is a threaded connection. The first valve housing 101 and the second valve housing 102 are movably connected through the cooperation of the threaded connection end 103 and the groove body, and a valve cavity 104 is provided inside. The one-way valve body 1 adopts a split structure, making the overall disassembly and assembly more convenient. The threaded connection can ensure the stable connection of the first valve housing 101 and the second valve housing 102 without affecting the normal operation of the one-way valve body 1.

[0033] Specifically, a valve plate 105 is movably installed inside the valve cavity 104 near the liquid inlet end 2. The valve plate 105 is located on one side of the magnet 501, and the magnet 501 can transmit the operation information of the valve plate 105 in real time.

[0034] Specifically, there is an electrical connection between the magnetic induction sensor 5 and the magnet 501. The magnetic induction sensor 5 is connected to an external control system through wireless data. When the opening of the valve plate 105 reaches the requirement, the magnetic induction sensor 5 receives the signal, can analyze different liquid inlet states, and quickly complete the effect.

[0035] Specifically, a liquid hole 401 is penetrated inside the end cover 4, and its size is the same as the size of the liquid guide holes inside the liquid inlet end 2 and the liquid outlet end 3;

[0036] Threaded blocks 6 are fixedly connected to the outer side walls of the liquid inlet end 2 and the liquid outlet end 3. Threaded grooves 402 are provided on the inner wall of the end cover 4. There is a threaded connection between the threaded grooves 402 and the threaded blocks 6. The end cover 4 is threadedly connected to the outer sides of the liquid inlet end 2 and the liquid outlet end 3 through the threaded blocks 6;

[0037] Clamping blocks 7 are fixedly connected to the outer sides of the liquid inlet end 2 and the liquid outlet end 3 at the bottom of the threaded blocks 6. Card slots 404 are provided on the inner side wall of the end cover 4. The card slots 404 are arranged in an annular array along the center of the end cover 4 and there are several groups. The sizes of each group of card slots 404 are the same as the sizes of the clamping blocks 7;

[0038] On the premise of ensuring the normal operation of the one-way valve, the end cover 4 can be stably connected to the outer sides of the liquid inlet end 2 and the liquid outlet end 3.

[0039] Specifically, limiting blocks 403 are arranged in an annular array along the center on the inner side wall of the end cover 4 outside the card slots 404. The arrangement of the limiting blocks 403 can effectively prevent the end cover 4 from being overly sleeved.

[0040] Working principle: The check valve body 1 can be installed by connecting the internal groove of the first valve housing 101 through the threaded connection end 103 on one side of the second valve housing 102. Subsequently, through the internal thread groove 402 in the end cover 4 cooperating with the threaded block 6, it can be installed outside the liquid inlet end 2 and the liquid outlet end 3, and stable connection can be completed through the clamping block 7 and the clamping groove 404. During the use of this check valve, a magnetic induction sensor 5 is installed at the position of the valve plate 105 inside the check valve body 1. Through the magnet 501 located on one side of the valve plate 105 and connected to the magnetic induction sensor 5, electromagnetic position feedback is realized when the valve plate 105 opens. When the opening degree of the valve plate 105 reaches the requirement, the magnetic induction sensor 5 receives the signal, which can analyze different liquid inlet states and quickly complete the response, enabling macroscopic monitoring of the internal operation state of the check valve. The staff can understand whether the valve plate 105 is in the open state or the closed state, so as to be able to handle it in time when a failure occurs in the check valve body 1;

[0041] The specific detection contents are as follows:

[0042] 1. When there is pressure at the liquid inlet end 2, it presses the valve plate 105 to move, the valve opens, the liquid flows forward, and flows out of the outlet. The magnetic induction sensor 5 feeds back the normal flow information to the system;

[0043] 2. When the pressure at the liquid outlet end 3 is higher than the pressure at the liquid inlet end 2, the valve plate 105 is pushed towards the inlet end, the valve closes, and the liquid is prevented from flowing out of the inlet end. The magnetic induction sensor 5 feeds back the normal closing information to the system;

[0044] 3. When the opening degree of the valve plate 105 does not reach the preset value, the information is fed back to the system through the magnetic induction sensor 5, and the liquid pressure is adjusted through the system, so as to squeeze the valve plate 105 to force it to open to the preset opening degree;

[0045] 4. When the check valve is damaged and reverse liquid flows through, the magnetic induction sensor 5 feeds back the error information to the system, triggering a fault prompt.

[0046] Each embodiment in this specification is described in a progressive manner. The same or similar parts between each embodiment can be referred to each other. The key points of each embodiment are the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiment.

[0047] The above are only the embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A one-way valve with feedback, characterized in that, It includes a one-way valve body (1), with a liquid inlet end (2) provided on one side of the one-way valve body (1), and a liquid outlet end (3) provided on the other side of the one-way valve body (1). End caps (4) are sleeved on the outer sides of both the liquid inlet end (2) and the liquid outlet end (3). A magnetic induction sensor (5) is inserted into the end face of the one-way valve body (1), and a magnet (501) is fixedly installed inside the one-way valve body (1) at the bottom of the magnetic induction sensor (5).

2. The one-way valve with feedback according to claim 1, characterized in that, The one-way valve body (1) is specifically composed of a first valve housing (101) and a second valve housing (102) connected. A threaded connection end (103) is fixedly connected to one side of the second valve housing (102). A groove is provided on the inner side wall of the first valve housing (101), and its size is the same as that of the threaded connection end (103) and there is a threaded connection. The first valve housing (101) and the second valve housing (102) are movably connected through the cooperation of the threaded connection end (103) and the groove, and a valve cavity (104) is provided inside.

3. The one-way valve with feedback according to claim 2, characterized in that, A valve plate (105) is movably installed inside the valve cavity (104) on the side close to the liquid inlet end (2), and the valve plate (105) is on one side of the magnet (501).

4. A one-way valve with feedback according to claim 1, characterized in that, There is an electrical connection between the magnetic induction sensor (5) and the magnet (501), and the magnetic induction sensor (5) is connected to an external control system through wireless data.

5. A one-way valve with feedback according to claim 1, characterized in that, A liquid hole (401) is provided through the inside of the end cap (4), and its size is the same as that of the liquid guiding holes inside the liquid inlet end (2) and the liquid outlet end (3). Threaded blocks (6) are fixedly connected to the outer side walls of both the liquid inlet end (2) and the liquid outlet end (3). Threaded grooves (402) are provided on the inner wall of the end cap (4). There is a threaded connection between the threaded grooves (402) and the threaded blocks (6), and the end cap (4) is threadedly connected to the outer sides of the liquid inlet end (2) and the liquid outlet end (3) through the threaded blocks (6).

6. The one-way valve with feedback according to claim 1, characterized in that, Clamping blocks (7) are fixedly connected to the outer sides of the liquid inlet end (2) and the liquid outlet end (3) at the bottom of the threaded blocks (6). Clamping grooves (404) are provided on the inner side wall of the end cap (4). The clamping grooves (404) are arranged in an annular array along the center of the end cap (4) and there are several groups. The sizes of each group of clamping grooves (404) are the same as those of the clamping blocks (7).

7. The one-way valve with feedback according to claim 6, characterized in that, Limiting blocks (403) are arranged in an annular array along the center on the inner side wall of the end cap (4) outside the clamping grooves (404).

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