Hydraulic valve with seal detection function

Abstract

The present application relates to the field of hydraulic valve, and disclose a kind of hydraulic valve with sealing detection function, including tee pipe, the tee pipe is used to connect the other components of device and the opening and installation of other components are matched, the lower end of the tee pipe is provided with auxiliary assembly, the outside of the auxiliary assembly is located in the lower end of tee pipe is provided with detection assembly, the detection assembly is used to detect the sealing of device, the auxiliary assembly is used to assist detection assembly installation and cooperate detection assembly detection, the hydraulic valve with sealing detection function provided by the present application has auxiliary assembly and detection assembly, workers only need to check installation box when inspection, can know where excessive wear of valve core, if there is a missed detection, then baffle can be used after falling and the color difference with surrounding environment, increase the possibility of being found, and filter element can also make medium slowly drip, which not only avoids the rapid loss of medium, but also further improves the probability of being found.

Description

Technical Field

[0001] This invention relates to the field of hydraulic valve technology, specifically to a hydraulic valve with a seal detection function. Background Technology

[0002] In patent application CN112128159A, the following components are included: a valve body, an outlet pipe, a driven outer gear sleeve, a rotating inner sleeve, a sealing gasket, a first lubricating oil brush, and a drive gear. The valve body has a top groove, in which a valve stem is rotatably mounted. An inlet pipe and an outlet pipe are fixedly mounted on the outer walls of both sides of the valve body. Mounting slant seats are fixedly mounted on the tops of the inlet and outlet pipes, and lubricating oil boxes are fixedly mounted on the mounting slant seats. Side shells are fixedly mounted on the exterior of both the inlet and outlet pipes. A rotating inner sleeve is rotatably mounted inside the outlet pipe, and a driven outer gear sleeve is fixedly mounted on the exterior of the rotating inner sleeve. A drive gear is rotatably mounted below the driven outer gear sleeve within the side shell via a mounting shaft. A sealing gasket is fixedly mounted inside the outlet pipe via a fixing bracket. The advantages are as follows: In this invention, by installing a sealing gasket inside and setting thermal expansion particles in the sealing gasket, when the hydraulic valve is used, it is directly assembled with the external structure. During assembly, the sealing gasket will inevitably be squeezed and rubbed, and at the same time, the oil being transported may have a certain temperature. These factors will cause the sealing gasket to gradually heat up, thereby increasing the temperature of the thermal expansion particles in the sealing gasket. As a result, the thermal expansion particles in the sealing gasket will effectively expand, causing the volume of the sealing gasket to expand, effectively blocking the gap at the assembly connection, thereby effectively ensuring the sealing performance of the hydraulic valve.

[0003] In existing technologies, including the aforementioned patents, the valve core gradually wears down over time during valve body use. Once the wear reaches a certain level, its sealing performance decreases. During operation, the internal liquid medium overflows from the worn parts of the valve core. Over time, this not only interferes with the pressure stability within the device but also reduces the amount of internal liquid medium, ultimately affecting the overall system efficiency. Based on this, most manufacturers in existing technologies use electronic hydraulic control and detection systems. Although sensors can accurately detect and judge pressure changes within the device, inspections still rely on manual labor. Therefore, existing systems can only inspect the entire system during operation and cannot perform more detailed inspections on individual devices. This makes existing technologies inconvenient for inspection workers, resulting in high workload. Furthermore, most existing safety relief valves focus on strengthening the seals, which, while extending the device's lifespan to some extent, cannot promptly detect a decline in sealing performance. Simultaneously, during daily use, safety relief valves often open accidentally due to non-dangerous conditions such as pressure fluctuations and vibrations, leading to unnecessary discharge of excessive media and even system interruption. Summary of the Invention

[0004] The problem this invention aims to solve is that during use, it is impossible to promptly detect whether the sealing performance has deteriorated or where wear occurs inside the valve core, and it cannot resolve the issue of accidental opening of existing safety valves.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: a hydraulic valve with a sealing detection function, including a three-way pipe, the three-way pipe being used to connect other parts of the device and to cooperate with the opening and installation of other components, an auxiliary component being provided at the lower end of the three-way pipe, a detection component being provided on the outside of the auxiliary component at the lower end of the three-way pipe, the detection component being used to detect the sealing performance of the device, the auxiliary component being used to assist the installation of the detection component and to cooperate with the detection component in detection, an installation component being provided at the upper end of the three-way pipe, the installation component being used to cooperate with the installation of components inside the device and to protect the parts inside, and a judgment component being provided in the middle of the three-way pipe, the judgment component being used to determine whether the pressure in the system is at a dangerous value;

[0006] The auxiliary component includes a connecting pipe, the upper end of which is fixedly connected to a tee pipe. The connecting pipe and the tee pipe are fixedly connected, and the inner diameter of the connecting pipe is the same as that of the tee pipe. A water guide groove is formed on the upper end face of the connecting pipe. The water guide groove near the center of the tee pipe is a hollow frustum shape, and the cross-section of the water guide groove near the outer wall of the tee pipe is trapezoidal. A drain hole is formed on the lower end of the tee pipe outside the connecting pipe. The drain hole is located in the trapezoidal part of the water guide groove. The water guide groove is used to guide the overflowing medium to the drain hole. A floating ring is provided above the water guide groove, and eight protrusions are fixedly provided on the upper end of the water guide groove.

[0007] The detection component includes a mounting box located at the lower end of the tee pipe. There are two mounting boxes in total. The mounting boxes are made of transparent material. The middle part of the mounting box is slidably connected to the connecting pipe. A water pipe is fixedly installed at the upper end of the mounting box. Each mounting box has eight independent chambers inside.

[0008] The water pipe is slidably connected to the drain hole, and the number of water pipes and drain holes is the same. A rubber head is fixedly installed inside the water pipe between two water pipes. The rubber head is conical. A filter element is fixedly installed at the upper end of the rubber head. A baffle is installed below the rubber head. The baffle is fixedly connected to the mounting box. The baffle is cross-shaped. Each of the four arms of the baffle has a break in the middle. The break is an inverted triangle.

[0009] Preferably, the determining component includes a mounting plate located between the tee pipe and the mounting component. The mounting plate has a T-shaped cross-section and is hollow in the middle. A movable tube is slidably disposed inside the mounting plate, and a sealing head is fixedly disposed at the lower end of the movable tube.

[0010] Preferably, the middle part of the sealing head is also hollow, and a movable plate is fixedly installed at the upper end of the movable tube. The movable plate is located above the mounting plate, and several sliding grooves are opened inside the movable plate. The sliding grooves are convex in shape, and a top block is slidably installed inside the sliding grooves.

[0011] Preferably, the length of the top block is less than the length of the slide groove, and the top block is also convex in shape. The lower end of the top block on the side away from the mounting plate is opened into an arc surface. Mounting blocks are provided around the outer perimeter of the movable plate, and the number of mounting blocks is the same as that of the top block.

[0012] Preferably, the lower end of the mounting block is fixedly connected to the mounting plate, the upper end of the mounting block is opened as an inclined surface, the inclined surface of the upper end of the mounting block is inclined towards the center of the mounting plate, and a pin is slidably provided inside the mounting block, the upper end of the pin near the top block is opened as an inclined surface.

[0013] Preferably, a spring is fixedly installed on a portion of the upper end of the pin within the mounting block, the other end of the spring is fixedly connected to the mounting block, and a clamping plate is fixedly installed on the lower inner end of the sealing head.

[0014] Preferably, the clamping plate consists of two parts, an upper and a lower one, which are connected by a telescopic rod. The upper clamping plate is fixedly connected to the sealing head, and the lower clamping plate is slidably connected to the sealing head. A sealing ring is provided between the clamping plates, and the height of the sealing ring is less than the height between the clamping plates.

[0015] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0016] (1) By setting auxiliary components and detection components, when the sealing performance of the sealing head decreases, the medium will flow into the transparent mounting box. In this way, when the worker detects abnormal pressure through the hydraulic detection system and conducts inspection, he only needs to check the mounting box to judge the degree of damage to the valve core. He can also understand the approximate extent of wear without disassembling the machine, so that the valve core can be maintained more conveniently after disassembly. This effectively prevents the system from malfunctioning due to low pressure or medium loss. In addition, the floating ring located above the water guide groove can prevent the medium from flowing directly into the mounting box when the safety valve is depressurized, avoiding misjudgment by the worker. To a certain extent, This design improves the reliability of detection. Furthermore, the rubber head, filter element, and baffle work together to prevent direct leakage of internal media to the outside. When a component is missed during inspection, the increasing media content in the mounting box will cause the baffle to break and fall, increasing the likelihood of detection by utilizing the color difference between the baffle and the surrounding environment. The filter element prevents dust from entering the system when the mounting box is not full; when the mounting box is full, it allows the media to drip slowly. This avoids rapid media loss and, in conjunction with the falling baffle, further increases the probability of detection, thus providing strong support for ensuring the valve body's service life and the overall system's operational stability.

[0017] (2) Under the action of the judgment component, when the pressure in the system increases, it can be determined whether the pressure increase is due to non-emergency pressure increase caused by the switching of the system or machine, mechanical vibration during operation, or emergency pressure increase caused by system failure. This can not only avoid excessive loss of medium caused by the accidental opening of the safety valve, but also assist the detection component in detection and prevent a small amount of overflow medium from entering the detection component when it is accidentally opened. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the entire invention;

[0019] Figure 2 This is a cross-sectional view of the device of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the auxiliary component of the present invention;

[0021] Figure 4 This is a three-dimensional schematic diagram of the detection component of the present invention;

[0022] Figure 5 This is a partial cross-sectional view of the mounting box of the present invention;

[0023] Figure 6 This is a bottom view of the mounting box of the present invention;

[0024] Figure 7 This is a schematic cross-sectional view of the component used in this invention.

[0025] Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle;

[0026] Figure 9 This is a schematic cross-sectional view of the mounting block of the present invention;

[0027] Figure 10 This is a schematic diagram of the sealing ring and clamping plate of the present invention.

[0028] In the diagram: 1. T-joint; 2. Auxiliary component; 201. Connecting pipe; 202. Water guide groove; 203. Drain hole; 3. Detection component; 301. Mounting box; 302. Water pipe; 303. Rubber head; 304. Filter element; 305. Baffle; 306. Break; 4. Mounting part; 5. Judgment component; 501. Mounting plate; 502. Movable pipe; 503. Sealing head; 504. Movable plate; 505. Slide groove; 506. Top block; 507. Mounting block; 508. Pin; 509. Spring; 510. Sealing ring; 511. Clamping plate. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0030] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0031] like Figures 1 to 10As shown, the present invention provides a hydraulic valve with a sealing detection function, including a three-way pipe 1. The three-way pipe 1 is used to connect other parts of the device and to cooperate with the opening and installation of other components. An auxiliary component 2 is provided at the lower end of the three-way pipe 1. A detection component 3 is provided on the outside of the auxiliary component 2 at the lower end of the three-way pipe 1. The detection component 3 is used to detect the sealing performance of the device. The auxiliary component 2 is used to assist the installation of the detection component 3 and cooperate with the detection component 3 to perform detection. An installation part 4 is provided at the upper end of the three-way pipe 1. The installation part 4 is used to cooperate with the installation of components in the device and to protect the parts inside. A judgment component 5 is provided in the middle of the three-way pipe 1. The judgment component 5 is used to determine whether the pressure in the system is at a dangerous value.

[0032] Auxiliary component 2 includes a connecting pipe 201, the upper end of which is fixedly connected to a tee pipe 1. The inner diameter of the connecting pipe 201 is the same as that of the tee pipe 1. A water guide groove 202 is provided on the upper end face of the connecting pipe 201. The water guide groove 202 near the center of the tee pipe 1 is a hollow frustum shape. The cross-section of the water guide groove 202 near the outer wall of the tee pipe 1 is trapezoidal. A drain hole 203 is provided at the lower end of the tee pipe 1 outside the connecting pipe 201. The drain hole 203 is located in the trapezoidal part of the water guide groove 202. The water guide groove 202 is used to guide the overflowing medium to the drain hole 203. A floating ring is provided above the water guide groove 202. Eight protrusions are fixedly provided at the upper end of the water guide groove 202.

[0033] The detection component 3 includes a mounting box 301, which is located at the lower end of the three-way pipe 1. There are two mounting boxes 301. The mounting boxes 301 are made of transparent material. The middle part of the mounting box 301 is slidably connected to the connecting pipe 201. A water pipe 302 is fixedly installed at the upper end of the mounting box 301. Each mounting box 301 has eight independent chambers inside.

[0034] Water pipe 302 is slidably connected to drain hole 203. The number of water pipes 302 and drain holes 203 is the same. Inside water pipe 302, between two water pipes 302, a rubber head 303 is fixedly installed. The rubber head 303 is conical. A filter element 304 is fixedly installed at the upper end of the rubber head 303. A baffle 305 is installed below the rubber head 303. The baffle 305 is fixedly connected to the mounting box 301. The baffle 305 is cross-shaped. Each of the four arms of the baffle 305 has a break 306 in the middle. The break 306 is inverted triangular. When painting the baffle 305, a brighter color needs to be selected according to the actual environment.

[0035] The determination component 5 includes a mounting plate 501, which is located between the tee pipe 1 and the mounting part 4. The mounting plate 501 has a T-shaped cross-section and is hollow in the middle. A movable tube 502 is slidably arranged inside the mounting plate 501, and a sealing head 503 is fixedly arranged at the lower end of the movable tube 502.

[0036] The middle part of the sealing head 503 is also hollow. The upper end of the movable tube 502 is fixedly provided with a movable plate 504. The movable plate 504 is located above the mounting plate 501. Several sliding grooves 505 are opened inside the movable plate 504. The sliding grooves 505 are convex in shape. A top block 506 is slidably arranged inside the sliding grooves 505.

[0037] The length of the top block 506 is less than the length of the slide groove 505. The top block 506 is also convex in shape. The lower end of the top block 506 on the side away from the mounting plate 501 is opened as an arc surface. Mounting blocks 507 are provided around the outer perimeter of the movable plate 504. The number of mounting blocks 507 is the same as that of the top block 506.

[0038] The lower end of the mounting block 507 is fixedly connected to the mounting plate 501. The upper end of the mounting block 507 is opened as a slope, and the upper slope of the mounting block 507 is inclined towards the center of the mounting plate 501. A pin 508 is slidably provided inside the mounting block 507. The upper end of the pin 508 near the top block 506 is opened as a slope.

[0039] A spring 509 is fixedly installed on a portion of the upper end of the pin 508 within the mounting block 507. The other end of the spring 509 is fixedly connected to the mounting block 507. A clamping plate 511 is fixedly installed on the lower end of the inner part of the sealing head 503.

[0040] The clamping plate 511 consists of two parts, an upper and a lower one, which are connected by a telescopic rod. The upper clamping plate 511 is fixedly connected to the sealing head 503, and the lower clamping plate 511 is slidably connected to the sealing head 503. A sealing ring 510 is provided between the clamping plates 511, and the height of the sealing ring 510 is less than the height between the clamping plates 511.

[0041] The working principle and usage process of this invention: During the use of the safety valve, the sealing head 503 will gradually wear down over time. When the wear reaches a certain level, a small amount of medium will flow out from the wear gap. After the medium flows out, it will first flow to the frustum part of the water guide trough 202, and then flow to the floating plate on one side. As the medium continues to increase, the floating plate will gradually float up. At this time, the medium will be guided by the trapezoidal part of the water guide trough 202 to the drain hole 203, and enter the installation box 301 through the water pipe 302. The medium entering the installation box 301 will remain inside it, which is convenient for direct observation during manual inspection. It should be noted that the floating plate will only float up when the medium leaks to a certain amount. When the safety valve is depressurized, the larger internal pressure will press the floating plate tightly to prevent the medium from entering the installation box 301 below.

[0042] If the media leak is not detected in time during manual inspection, the media in the installation box 301 will gradually increase. At this time, the rubber head 303 will gradually sink downward as the media increases until the filter element 304 hits the baffle 305. If the worker still does not notice this, as the media in the installation box 301 continues to increase, the filter element 304 will be completely pushed downward, thereby destroying the baffle 305. The falling baffle 305 will remind the inspection worker or other workers to pay attention to the media leak. It is also worth mentioning that when the media enters the installation box 301, the protrusion on the water guide trough 202 can guide the media to the drain hole 203 near the leak point and fall into the corresponding position in the installation box 301.

[0043] When the pressure in the system reaches the starting pressure, the medium will squeeze the sealing ring 510. At this time, the two sides of the sealing ring 510 cannot withstand the pressure and will tilt upwards, allowing the medium to flow upwards from both sides and eventually enter the interior of the movable disc 504. As the pressure continues to increase, the top block 506 will be pushed outwards. When the top block 506 moves to the outermost end, the pin 508 will be completely pushed out, the movable disc 504 will be unlocked and can move upwards. During this process, if the pressure change is not a dangerous situation, the medium will either not be able to reach the movable disc 504 or will not be able to completely push out the pin 508. When the pressure is at a trough, the clamp 511 can move downwards, and the medium above can press down the sealing ring 510 and return it to the system. If the pressure change is a dangerous situation, after completing the above steps, the sealing head 503 will move upwards to start depressurizing.

[0044] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A hydraulic valve with a sealing detection function, comprising a three-way pipe (1), characterized in that: The three-way pipe (1) is used to connect other parts of the device and to cooperate with the opening and installation of other components. An auxiliary component (2) is provided at the lower end of the three-way pipe (1). A detection component (3) is provided on the outside of the auxiliary component (2) at the lower end of the three-way pipe (1). The detection component (3) is used to detect the sealing performance of the device. The auxiliary component (2) is used to assist the installation of the detection component (3) and cooperate with the detection component (3) for detection. An installation part (4) is provided at the upper end of the three-way pipe (1). The installation part (4) is used to cooperate with the installation of components in the device and to protect the parts inside. A judgment component (5) is provided in the middle of the three-way pipe (1). The judgment component (5) is used to determine whether the pressure in the system is at a dangerous value. The auxiliary component (2) includes a connecting pipe (201), the upper end of which is fixedly connected to a three-way pipe (1). The inner diameter of the connecting pipe (201) is the same as that of the three-way pipe (1). A water guide groove (202) is provided on the upper end face of the connecting pipe (201). The water guide groove (202) near the center of the three-way pipe (1) is a hollow frustum shape. (1) The cross-section of the water guide groove (202) on the outer wall is trapezoidal. The lower end of the three-way pipe (1) is located outside the connecting pipe (201) and a drain hole (203) is provided. The drain hole (203) is located in the trapezoidal part of the water guide groove (202). The water guide groove (202) is used to guide the overflowing medium to the drain hole (203). A floating ring is provided above the water guide groove (202). Eight protrusions are fixedly provided at the upper end of the water guide groove (202). The detection component (3) includes a mounting box (301), which is located at the lower end of the three-way pipe (1). There are two mounting boxes (301). The mounting boxes (301) are made of transparent material. The middle part of the mounting box (301) is slidably connected to the connecting pipe (201). A water pipe (302) is fixedly installed at the upper end of the mounting box (301). Each mounting box (301) has eight independent chambers inside. The water pipe (302) is slidably connected to the drain hole (203). The number of water pipes (302) and drain holes (203) is the same. A rubber head (303) is fixedly installed inside the water pipe (302) between two water pipes (302). The rubber head (303) is conical. A filter element (304) is fixedly installed at the upper end of the rubber head (303). A baffle (305) is installed below the rubber head (303). The baffle (305) is fixedly connected to the mounting box (301). The baffle (305) is cross-shaped. A break (306) is opened in the middle of each of the four arms of the baffle (305). The break (306) is an inverted triangle.

2. A hydraulic valve with a sealing detection function according to claim 1, characterized in that: The determination component (5) includes a mounting plate (501), which is located between the tee pipe (1) and the mounting component (4). The mounting plate (501) has a T-shaped cross section and is hollow in the middle. A movable tube (502) is slidably disposed inside the mounting plate (501), and a sealing head (503) is fixedly disposed at the lower end of the movable tube (502).

3. A hydraulic valve with a sealing detection function according to claim 2, characterized in that: The middle part of the sealing head (503) is also hollow. The upper end of the movable tube (502) is fixedly provided with a movable disc (504). The movable disc (504) is located above the mounting disc (501). The movable disc (504) has several sliding grooves (505) inside. The sliding grooves (505) are convex in shape. A top block (506) is slidably provided inside the sliding grooves (505).

4. A hydraulic valve with a sealing detection function according to claim 3, characterized in that: The length of the top block (506) is less than the length of the slide (505). The top block (506) is also convex in shape. The lower end of the top block (506) away from the mounting plate (501) is opened as an arc surface. Mounting blocks (507) are provided around the outer perimeter of the movable plate (504). The number of mounting blocks (507) is the same as that of the top block (506).

5. A hydraulic valve with a sealing detection function according to claim 4, characterized in that: The lower end of the mounting block (507) is fixedly connected to the mounting plate (501). The upper end of the mounting block (507) is opened as an inclined surface. The inclined surface of the upper end of the mounting block (507) is inclined towards the center of the mounting plate (501). A pin (508) is slidably provided inside the mounting block (507). The upper end of the pin (508) near the top block (506) is opened as an inclined surface.

6. A hydraulic valve with a seal detection function according to claim 5, characterized in that: A spring (509) is fixedly installed on a portion of the upper end of the pin (508) inside the mounting block (507), and the other end of the spring (509) is fixedly connected to the mounting block (507). A clamping plate (511) is fixedly installed on the lower end of the inner part of the sealing head (503).

7. A hydraulic valve with a sealing detection function according to claim 6, characterized in that: The clamping plate (511) consists of two parts, an upper and a lower one, which are connected by a telescopic rod. The upper clamping plate (511) is fixedly connected to the sealing head (503), and the lower clamping plate (511) is slidably connected to the sealing head (503). A sealing ring (510) is provided between the clamping plates (511), and the height of the sealing ring (510) is less than the height between the clamping plates (511).

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