A sealing detection device for hydraulic valve with protection function

Abstract

The present application relates to the field of hydraulic valve, especially to a sealing detection equipment for hydraulic valve with protection function, comprising a fixed table and a mounting frame; the fixed table is fixedly connected with the mounting frame; further comprising a cylinder, a transparent cover, a fixed rod and the like; the mounting frame is fixedly connected with the cylinder; the output shaft of the cylinder is fixedly connected with the transparent cover; the transparent cover is fixedly connected with a plurality of fixed rods. When detecting the two execution ports on the rightmost side, the blocking block is separated from the corresponding detection cylinder, the high-pressure oil normally passes through the detection cylinder into the connecting cylinder, and the other execution ports are blocked by the blocking block, thereby preventing the high-pressure oil from spilling out of the other leaking execution ports through the blocking block, and the detection cotton contacts the corresponding execution port to detect whether the corresponding execution port has oil seepage leakage phenomenon, if oil seepage phenomenon occurs, the seeped oil will adhere to the detection cotton, facilitating subsequent manual observation.

Description

Technical Field

[0001] This invention relates to the field of hydraulic valves, and more particularly to a sealing performance testing device for hydraulic valves with protective functions. Background Technology

[0002] Multi-way directional valves play a crucial role in regulating the direction and flow rate of hydraulic fluids. These valves are the cornerstone of ensuring the efficient and safe operation of the system. Any slight leak in the seal can lead to a sharp drop in system efficiency, increased energy consumption, and serious safety risks. However, because multi-way valves have multiple sets of actuators, current technology closes other actuators when performing a seal test on one set of actuators. But if other actuators have poor sealing or leakage, when high-pressure oil is introduced into the current actuator for a seal test, the high-pressure oil may also rush out or seep out from other poorly sealed actuators, resulting in leakage. Summary of the Invention

[0003] To overcome the drawback that when high-pressure oil is introduced into the current actuator for sealing testing, high-pressure oil may also leak out or seep out from other actuators with poor sealing performance, the present invention provides a sealing performance testing device for hydraulic valves with protective functions.

[0004] The technical solution of this invention is as follows: a sealing performance testing device for hydraulic valves with protective function, comprising a fixed platform and a mounting frame; the fixed platform is fixedly connected to the mounting frame; it also includes a cylinder, a transparent cover, fixed rods, connecting rods, a testing cylinder, a drive assembly, a testing assembly, and a sealing assembly; the mounting frame is fixedly connected to the cylinder; the output shaft of the cylinder is fixedly connected to the transparent cover; the transparent cover is fixedly connected to several fixed rods; each fixed rod is fixedly connected to a connecting rod; each connecting rod is connected to several testing cylinders, and all testing cylinders on each connecting rod correspond to a set of actuator ports on the valve body; each connecting rod is connected to two drive assemblies for rotating the testing cylinders, and the drive assemblies are connected to the testing cylinders; each testing cylinder is connected to a testing assembly for sealing performance testing; each testing cylinder is connected to a sealing assembly for sealing the actuator ports of the valve body.

[0005] As a preferred embodiment of the present invention, the driving assembly includes a DD motor I; each connecting rod is fixedly connected to a plurality of DD motors I, and the output shaft of the DD motor I is fixedly connected to the corresponding detection cylinder.

[0006] As a preferred embodiment of the present invention, it further includes an electric guide rail, a moving block I, an electric push rod, a fixed plate, a connecting cylinder, a sliding ring, a scale line, and an actuator; the transparent cover is fixedly connected to two electric guide rails; each electric guide rail is slidably connected to a moving block I; each moving block I is fixedly connected to an electric push rod; each telescopic end of the electric push rod is fixedly connected to a fixed plate; each fixed plate is fixedly connected to a connecting cylinder, and the connecting cylinder is located directly above the corresponding detection cylinder, and the connecting cylinder is made of transparent material; each connecting cylinder is slidably connected to a sliding ring; each connecting cylinder is fixedly connected to a scale line; the transparent cover is fixedly connected to two actuators, and the actuators are connected to the corresponding connecting cylinders via telescopic flexible hoses.

[0007] As a preferred embodiment of the present invention, the sliding ring is conical.

[0008] As a preferred embodiment of the present invention, the detection assembly includes a sealing ring, a hollow tube, an annular guide rail, a moving block II, and a camera; each detection cylinder is fixedly connected to a sealing ring; each sealing ring is fixedly connected to a hollow tube; each sealing ring is fixedly connected to an annular guide rail; each annular guide rail is slidably connected to a moving block II; and each moving block II is fixedly connected to a camera.

[0009] As a preferred embodiment of the present invention, it further includes a flow guide ring; each sealing ring is fixedly connected to a flow guide ring.

[0010] As a preferred embodiment of the present invention, it further includes a motor, a rotating rod, and a cleaning plate; each moving block II is fixedly connected to a motor; each motor's output shaft is fixedly connected to a rotating rod; and each rotating rod is fixedly connected to two cleaning plates.

[0011] As a preferred embodiment of the present invention, the sealing assembly includes a connecting shaft, a DD motor II, a sealing block, and a detection cotton; each detection cylinder is rotatably connected to a connecting shaft; each detection cylinder is fixedly connected to a DD motor II, and the output shaft of the DD motor II is fixedly connected to a worm gear, the connecting shaft is fixedly connected to a turbine, and the worm gear meshes with the corresponding turbine; each connecting shaft is fixedly connected to a sealing block, and the diameter of the sealing block is the same as the inner diameter of the detection cylinder; each sealing block has a detection cotton fixedly connected to the side away from the opening of the detection cylinder.

[0012] As a preferred embodiment of the present invention, the edge of the sealing block is arc-shaped.

[0013] As a preferred embodiment of the present invention, it further includes a cleaning cotton; each sealing block is fixedly connected to a cleaning cotton, and the cleaning cotton is located on the opposite side of the detection cotton.

[0014] Compared with the prior art, the present invention has the following advantages: The present invention uses a detection component to detect whether bubbles are generated in the soap solution at the connection positions between the two rightmost detection cylinders and the corresponding two execution ports, and between the two rightmost detection cylinders and the corresponding two connecting cylinders, to determine whether a leak has occurred at the corresponding connection position. At the same time, by observing whether the height of the sliding ring moves upward each time through the transparent connecting cylinder is aligned with the same position of the scale line, it can be determined whether the oil pressure is consistent, thereby determining whether an oil leak has occurred. The dual detection improves the detection accuracy. Meanwhile, the sealing component seals other execution ports to prevent high-pressure oil from rushing out from other execution ports with leaks, and the sealing component also detects oil leaks at other execution ports.

[0015] This invention controls the motor to start, and the output shaft of the motor drives the rotating rod and cleaning plate to rotate, so that one of the cleaning plates comes into contact with the soap solution. Then, the circular guide rail controls the moving block II to drive the rotating rod and cleaning plate to rotate, so that the cleaning plate evenly applies the soap solution to the position where the detection cylinder and the execution port are connected.

[0016] This invention, when testing the two rightmost actuators, involves the sealing block detaching from the corresponding detection cylinder. High-pressure oil flows normally through the detection cylinder into the connecting cylinder, while the other actuators are blocked by the sealing block. This prevents high-pressure oil from escaping from other leaking actuators. Furthermore, the detection cotton contacts the corresponding actuator to detect whether there is any oil leakage. If oil leakage is found, the leaked oil will adhere to the detection cotton for easy manual observation later. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the hydraulic valve sealing performance testing device with protective function disclosed in this invention;

[0018] Figure 2 This is a schematic diagram of the valve body structure of the sealing performance testing device for hydraulic valves with protective functions disclosed in this invention.

[0019] Figure 3 This is a schematic diagram of the internal structure of the transparent housing of the hydraulic valve sealing performance testing equipment with protective function disclosed in this invention.

[0020] Figure 4 This is a partial structural diagram of the combination of the fixed rod, connecting rod, detection cylinder, drive assembly, and sealing assembly of the hydraulic valve sealing performance testing equipment with protective function disclosed in this invention.

[0021] Figure 5 This is a partial structural diagram of the combined structure of the test cylinder, plugging component, and sealing component of the hydraulic valve sealing performance testing equipment with protective function disclosed in this invention.

[0022] Figure 6 This invention discloses a combined cross-sectional view of the test cylinder, plugging assembly, and sealing assembly of the hydraulic valve sealing performance testing device with protective function;

[0023] Figure 7 This is a partial structural diagram of the test cylinder and sealing assembly of the hydraulic valve sealing test equipment with protective function disclosed in this invention.

[0024] Figure 8 This is a partial structural diagram of the combined structure of the test cylinder, connecting cylinder, sliding ring, scale line and sealing component of the hydraulic valve sealing performance testing equipment with protective function disclosed in this invention.

[0025] Figure 9 This is a schematic diagram showing the state of the test cylinder, sealing ring, and sealing assembly of the hydraulic valve sealing performance testing device with protective function disclosed in this invention.

[0026] The markings in the diagram are as follows: 1-Fixed platform, 2-Mounting bracket, 3-Valve body, 101-Cylinder, 102-Transparent cover, 103-Fixed rod, 104-Connecting rod, 105-Detection cylinder, 106-DD motor I, 107-Electric guide rail, 108-Moving block I, 1011-Electric push rod, 1012-Fixed plate, 1013-Connecting cylinder, 1014-Sliding ring, 1015-Scale line, 1016-Actuator Pipe, 201-Sealing ring, 202-Hollow pipe, 203-Annular guide rail, 204-Moving block II, 205-Camera, 206-Guide ring, 207-Motor, 208-Rotating rod, 209-Cleaning plate, 301-Connecting shaft, 302-DD motor II, 303-Blocking block, 304-Detection cotton, 305-Cleaning cotton, 31-Oil inlet, 32-Oil outlet, 33-Electrical control end, 34-Actuator port. Detailed Implementation

[0027] Although the invention may be described with respect to specific applications or industries, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.

[0028] Example 1

[0029] A sealing performance testing device for hydraulic valves with protective functions, such as Figures 1-9 As shown, it includes a fixed platform 1 and a mounting bracket 2; the fixed platform 1 is fixedly connected to the mounting bracket 2;

[0030] It also includes a cylinder 101, a transparent cover 102, a fixing rod 103, a connecting rod 104, a detection cylinder 105, a drive assembly, a detection assembly, and a sealing assembly; the mounting bracket 2 is bolted to the cylinder 101; the output shaft of the cylinder 101 is fixedly connected to the transparent cover 102; the transparent cover 102 is fixedly connected to several fixing rods 103; each fixing rod 103 is fixedly connected to a connecting rod 104; each connecting rod 104 is connected to two detection cylinders 105, and all the detection cylinders 105 on each connecting rod 104 correspond to a set of actuation ports 34 on the valve body 3; each connecting rod 104 is connected to two drive assemblies for rotating the detection cylinders 105, and the drive assemblies are connected to the detection cylinders 105; each detection cylinder 105 is connected to a detection assembly for sealing detection; each detection cylinder 105 is connected to a sealing assembly for sealing the actuation ports 34 of the valve body 3.

[0031] The valve body 3 consists of an oil inlet 31, an oil outlet 32, an electrical control terminal 33, and an actuation port 34. An oil inlet 31 is provided on one side of the valve body 3, and an oil outlet 32 ​​is provided on the other side of the valve body 3. Several electrical control terminals 33 are fixedly connected to the valve body 3. Several actuation ports 34 are provided on the valve body 3.

[0032] The drive assembly includes a DD motor I 106; each connecting rod 104 is fixedly connected to several DD motors I 106, and the output shaft of the DD motor I 106 is fixedly connected to the corresponding detection cylinder 105.

[0033] It also includes an electric guide rail 107, a moving block I 108, an electric push rod 1011, a fixing plate 1012, a connecting cylinder 1013, a sliding ring 1014, a scale line 1015, and an actuator tube 1016; the transparent cover 102 is fixedly connected to two electric guide rails 107; each electric guide rail 107 is slidably connected to a moving block I 108; each moving block I 108 is bolted to an electric push rod 1011; and each telescopic end of the electric push rod 1011 is fixedly connected to a fixing plate. 1012; Each fixed plate 1012 is fixedly connected to a connecting cylinder 1013, and the connecting cylinder 1013 is located directly above the corresponding detection cylinder 105, and the connecting cylinder 1013 is made of transparent material; Each connecting cylinder 1013 has a sliding ring 1014 slidably connected to its inner side; Each connecting cylinder 1013 is fixedly connected to a scale line 1015; The transparent cover 102 is fixedly connected to two actuators 1016, and the actuators 1016 are connected to the corresponding connecting cylinders 1013 through telescopic hoses.

[0034] The sliding ring 1014 is conical and guides the oil upward, reducing the resistance of the sliding ring 1014 to the oil and thus reducing the influence of the sliding ring 1014 on the oil flow pressure.

[0035] In use, connect the external oil pump to the oil inlet 31, connect the external oil tank to the oil outlet 32, and connect the external actuator to the two actuator tubes 1016. Initially, as shown... Figure 3 As shown, the detection components on the two rightmost detection cylinders 105 of the valve body 3 are located on the lower side, while the sealing components are located on the upper side. The other detection cylinders 105 are the opposite. At this time, the two connecting cylinders 1013 are connected to the two rightmost detection cylinders 105. Then, the control cylinder 101 drives the transparent cover 102 and its parts to move down until the two rightmost detection cylinders 105 are connected to the two rightmost execution ports 34. The detection components on the two rightmost detection cylinders 105 contact the corresponding execution ports 34, and the sealing components on the other detection cylinders 105 enter the other execution ports 34 to seal.

[0036] Subsequently, the control detection component applies soap solution to the connection points between the two rightmost detection cylinders 105 and their corresponding two actuator ports 34, and also applies soap solution to the connection points between the two rightmost detection cylinders 105 and their corresponding two connecting cylinders 1013. Next, the control external oil pump pumps hydraulic oil into the valve body 3 through the oil inlet 31. The control electronic control terminal 33 causes the oil to first flow through one of the rightmost actuator ports 34 to the detection cylinder 105, then through the connecting cylinder 1013 to the external actuator, causing the external actuator to actuate. Then, the control electronic control terminal 33 causes the oil to flow through the other rightmost actuator port 34, past the corresponding detection cylinder 105 and connecting cylinder 1013, back into the valve body 3, causing the external actuator to reverse its action, and finally flow to the oil outlet 32. Each time the oil flows upward through the connecting cylinder 1013, it drives the sliding ring 1014 along... The connecting cylinder 1013 moves up a certain height and repeats the above action multiple times. During this process, the detection component detects whether the soap solution at the connection position between the two rightmost detection cylinders 105 and the corresponding two execution ports 34, as well as the connection position between the two rightmost detection cylinders 105 and the corresponding two connecting cylinders 1013, produces bubbles to determine whether a leak has occurred at the corresponding connection position. At the same time, the transparent connecting cylinder 1013 is used to observe whether the height of the sliding ring 1014 moves up each time is aligned with the same position of the scale line 1015 to determine whether the oil pressure is consistent, thereby determining whether an oil leak has occurred. The dual detection improves the detection accuracy. At the same time, the sealing component seals other execution ports 34 to prevent high-pressure oil from rushing out from other execution ports 34 where there is a leak. The sealing component also performs oil leak detection on other execution ports 34.

[0037] After the sealing test of the rightmost set of actuator ports 34 is completed, the sealing test of the second set of actuator ports 34 from the right needs to be performed. First, control the cylinder 101 to move the transparent cover 102 and its parts upward, so that the test cylinder 105 moves upward and disengages from the corresponding actuator port 34. Then, control the electric push rod 1011 to move the fixing plate 1012 to move the connecting cylinder 1013 upward, so that the connecting cylinder 1013 disengages from the test cylinder 105. Next, control the DD motor I 106 to start, and drive the two rightmost and the two test cylinders 105 from the second set from the right to rotate 180 degrees synchronously through the output shaft of the DD motor I 106. This causes the test component on the rightmost test cylinder 105 to be on the upper side, and the corresponding sealing component to be on the lower side. The test components on the two test cylinders 105 from the second set from the right to be on the lower side, and the corresponding sealing components to be on the upper side.

[0038] Next, the control cylinder 101 moves the transparent cover 102 and its parts downwards until the two second-to-left detection cylinders 105 from the right are connected to the two execution ports 34 from the right, and the detection components on the two second-to-left detection cylinders 105 contact the corresponding execution ports 34. The sealing components on the other detection cylinders 105 then enter the other execution ports 34 to seal them. Then, the control electric guide rail 107 causes the moving block I 108 to drive the electric push rod 1011 to move... The fixed plate 1012 and the connecting cylinder 1013 move to the left until the two connecting cylinders 1013 are directly above the two detection cylinders 105 from the right. Then, the electric push rod 1011 controls the fixed plate 1012 and the connecting cylinder 1013 to move down, so that the connecting cylinder 1013 is connected to the corresponding detection cylinder 105 and the detection component is in contact with the corresponding detection cylinder 105. Thus, when the sealing performance of the second set of execution ports 34 from the right is tested, the other execution ports 34 are blocked.

[0039] Example 2

[0040] Based on Example 1, such as Figures 5-9 As shown, the detection assembly includes a sealing ring 201, a hollow tube 202, an annular guide rail 203, a moving block II 204, and a camera 205; each detection cylinder 105 is fixedly connected to a sealing ring 201; each sealing ring 201 is fixedly connected to a hollow tube 202; each sealing ring 201 is fixedly connected to an annular guide rail 203; each annular guide rail 203 is slidably connected to a moving block II 204; and each moving block II 204 is fixedly connected to a camera 205.

[0041] It also includes a guide ring 206; each sealing ring 201 is fixedly connected to a guide ring 206, which guides the soap liquid to the connection position between the detection cylinder 105 and the execution port 34 under its own gravity, thereby reducing the waste of soap liquid.

[0042] It also includes a motor 207, a rotating rod 208, and a cleaning plate 209; each moving block II 204 is fixedly connected to a motor 207; each output shaft of each motor 207 is fixedly connected to a rotating rod 208; each rotating rod 208 is fixedly connected to two cleaning plates 209.

[0043] An external pump is connected to the hollow tube 202. Before testing, the external pump is controlled to inject soap solution through the hollow tube 202 into the position where the detection cylinder 105 and the execution port 34 are connected. Then, when the oil flows through the execution port 34 and the detection cylinder 105, and through the detection cylinder 105 and the connecting cylinder 1013, the annular guide rail 203 is controlled to make the moving block II 204 drive the camera 205 to rotate in an annular manner. Then, the camera 205 is used to observe whether bubbles are generated in the soap solution at the connection position between the execution port 34 and the detection cylinder 105, and between the detection cylinder 105 and the connecting cylinder 1013, in order to determine whether the oil leaks at the connection position.

[0044] Before testing, an external pump injects soap solution through hollow tube 202 into the connection between the testing cylinder 105 and the execution port 34. At this time, the control motor 207 starts, and its output shaft drives the rotating rod 208 and cleaning plate 209 to rotate, causing one cleaning plate 209 to contact the soap solution. Subsequently, the control ring guide rail 203 causes the moving block II 204 to rotate the rotating rod 208 and cleaning plate 209, thus allowing the cleaning plate 209 to evenly spread the soap solution onto the connection between the testing cylinder 105 and the execution port 34, forming a thin layer of soap solution. After testing... After completion, the soap solution on the detection cylinder 105 and the guide ring 206 needs to be removed to prevent the soap solution from flowing around and becoming inconvenient to clean after the detection cylinder 105 is separated from the corresponding execution port 34. Therefore, the motor 207 is started again, and the output shaft of the motor 207 drives the rotating rod 208 and the cleaning plate 209 to rotate, so that the other cleaning plate 209 contacts the detection cylinder 105. Then, the annular guide rail 203 is controlled to make the moving block II 204 drive the rotating rod 208 and the cleaning plate 209 to rotate, so that the cleaning plate 209 scrapes off the soap solution on the detection cylinder 105 and the guide ring 206.

[0045] Example 3

[0046] Based on Example 2, such as Figures 6-8 and Figure 9As shown, the sealing assembly includes a connecting shaft 301, a DD motor II 302, a sealing block 303, and a detection cotton 304; each detection cylinder 105 is rotatably connected to a connecting shaft 301; each detection cylinder 105 is fixedly connected to a DD motor II 302, and the output shaft of the DD motor II 302 is fixedly connected to a worm gear, the connecting shaft 301 is fixedly connected to a turbine, and the worm gear meshes with the corresponding turbine; each connecting shaft 301 is fixedly connected to a sealing block 303, and the diameter of the sealing block 303 is the same as the inner diameter of the detection cylinder 105; each sealing block 303 has a detection cotton 304 fixedly connected to the side away from the opening of the detection cylinder 105.

[0047] The edge of the sealing block 303 is arc-shaped to reduce the friction between the sealing block 303 and the execution port 34, making it easier for the sealing block 303 to enter the execution port 34 and perform sealing detection on the execution port 34.

[0048] It also includes a cleaning cotton 305; each sealing block 303 is fixed with a cleaning cotton 305, and the cleaning cotton 305 is located on the opposite side of the detection cotton 304. After the connecting cylinder 1013 drives the detection component on it to detach from the detection cylinder 105, soap and oil will remain on the opening of the detection cylinder 105, affecting the detection of the next execution port 34. Therefore, during the process of the sealing block 303 rotating to align with the opening of the detection cylinder 105, the cleaning cotton 305 and the opening of the detection cylinder 105 move relative to each other, thereby wiping away the soap and oil remaining on the opening of the detection cylinder 105 through the cleaning cotton 305.

[0049] In Example 1, the working steps of the sealing component are as follows: When detecting the two rightmost actuation ports 34, it is necessary to seal the other actuation ports 34 to prevent high-pressure oil from rushing out from other leaking actuation ports 34, and to detect whether other actuation ports 34 have leaked. Therefore, initially, when detecting the two rightmost actuation ports 34, the sealing block 303 detaches from the corresponding detection cylinder 105, and the high-pressure oil normally passes through the detection cylinder 105 and enters the connecting cylinder 1013. Figure 6 As shown, the other execution ports 34 are blocked by blocking blocks 303, such as... Figure 9 As shown, the sealing block 303 prevents high-pressure oil from flowing out from other leaking actuator ports 34, and the detection cotton 304 contacts the corresponding actuator port 34 to detect whether there is an oil leakage phenomenon in the corresponding actuator port 34. If an oil leakage phenomenon occurs, the leaked oil will adhere to the detection cotton 304 for easy subsequent manual observation.

[0050] After the two rightmost execution ports 34 have completed their detection, the control drive assembly moves the detection cylinder 105 upwards to disengage from the corresponding execution port 34. After the connecting cylinder 1013 disengages from the corresponding detection cylinder 105, the control drive assembly rotates the two rightmost detection cylinders 105 and the two second-to-left detection cylinders 105 by 180 degrees. Then, the DD motor II 302 on the rightmost detection cylinder 105 drives the corresponding connecting shaft 301 and the sealing block 303 to rotate via a worm gear and a turbine, so that the sealing block 303 completely covers the opening of the corresponding detection cylinder 105. This causes the sealing block 303 on the rightmost detection cylinder 105 to block the rightmost execution port 34. At the same time, the DD motor II 302 on the second-to-left detection cylinder 105 drives the corresponding connecting shaft 301 and the sealing block 303 to rotate, causing the sealing block 303 to disengage from the opening of the corresponding detection cylinder 105. This connects the second-to-left detection cylinder 105, the corresponding execution port 34, and the connecting cylinder 1013.

[0051] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A sealing detection device for hydraulic valve with protection function, comprising a fixed table (1) and a mounting frame (2); the fixed table (1) is fixedly connected with the mounting frame (2); characterized in that: Also include the cylinder (101), transparent cover (102), fixed rod (103), connecting rod (104), detection cylinder (105), drive assembly, detection assembly and plugging assembly; mounting frame (2) is fixedly connected with the cylinder (101); the output shaft of the cylinder (101) is fixedly connected with the transparent cover (102); the transparent cover (102) is fixedly connected with a plurality of fixed rods (103); each fixed rod (103) is fixedly connected with a connecting rod (104); each connecting rod (104) is connected with a plurality of detection cylinders (105), and all detection cylinders (105) on each connecting rod (104) correspond to a group of execution ports (34) on the valve body (3); each connecting rod (104) is connected with two drive assemblies for driving the detection cylinder (105) to overturn, and the drive assembly is connected with the detection cylinder (105); each detection cylinder (105) is connected with a detection assembly for sealing detection; each detection cylinder (105) is connected with a plugging assembly for plugging the execution port (34) of the valve body (3); wherein the sealing detection equipment for the hydraulic valve with protection function further comprises an electric guide rail (107), a moving block I (108), an electric push rod (1011), a fixed plate (1012), a connecting cylinder (1013), a sliding ring (1014), a scale line (1015) and an execution pipe (1016); the transparent cover (102) is fixedly connected with two electric guide rails (107); each electric guide rail (107) is slidingly connected with a moving block I (108); each moving block I (108) is fixedly connected with an electric push rod (1011); the telescopic end of each electric push rod (1011) is fixedly connected with a fixed plate (1012); each fixed plate (1012) is fixedly connected with a connecting cylinder (1013), and the connecting cylinder (1013) is located directly above the corresponding detection cylinder (105), and the connecting cylinder (1013) is made of transparent material; each connecting cylinder (1013) is slidingly connected with a sliding ring (1014); each connecting cylinder (1013) is fixedly connected with a scale line (1015); the transparent cover (102) is fixedly connected with two execution pipes (1016), and the execution pipe (1016) is connected with the corresponding connecting cylinder (1013) through the telescopic hose; the plugging assembly comprises a connecting shaft (301), a DD motor II (302), a plugging block (303) and a detection cotton (304); each detection cylinder (105) is rotatably connected with a connecting shaft (301); each detection cylinder (105) is fixedly connected with a DD motor II (302), and the output shaft of the DD motor II (302) is fixedly connected with a worm; the connecting shaft (301) is fixedly connected with a turbine, and the worm is engaged with the corresponding turbine; each connecting shaft (301) is fixedly connected with a plugging block (303), and the diameter of the plugging block (303) is consistent with the inner diameter of the detection cylinder (105); each plugging block (303) is fixedly connected with a detection cotton (304) away from the cylinder port of the detection cylinder (105).

2. The sealing property detection apparatus for a hydraulic valve having a protection function according to claim 1, characterized by: The driving assembly comprises DD motors I (106); each connecting rod (104) is fixedly connected with a plurality of DD motors I (106), and the output shaft of the DD motor I (106) is fixedly connected with a corresponding detection cylinder (105).

3. The sealing property detection apparatus for a hydraulic valve having a protection function according to claim 1, characterized by: The sliding ring (1014) is conical.

4. The sealing property detection apparatus for a hydraulic valve having a protection function according to claim 1, characterized by: The detection assembly comprises a sealing ring (201), a hollow tube (202), an annular guide rail (203), a moving block II (204) and a camera (205); each detection cylinder (105) is fixedly connected with a sealing ring (201); each sealing ring (201) is fixedly connected with a hollow tube (202); each sealing ring (201) is fixedly connected with an annular guide rail (203); each annular guide rail (203) is slidingly connected with a moving block II (204); and each moving block II (204) is fixedly connected with a camera (205).

5. The sealing property detection apparatus for a hydraulic valve having a protection function according to claim 4, characterized by: The detection assembly further comprises a flow guide ring (206); each sealing ring (201) is fixedly connected with a flow guide ring (206).

6. The sealing property detection apparatus for a hydraulic valve having a protection function according to claim 4, characterized by: The detection assembly further comprises a motor (207), a rotating rod (208) and a cleaning plate (209); each moving block II (204) is fixedly connected with a motor (207); the output shaft of each motor (207) is fixedly connected with a rotating rod (208); and each rotating rod (208) is fixedly connected with two cleaning plates (209).

7. The sealing property detection apparatus for a hydraulic valve having a protection function according to claim 1, characterized by: The edge of the blocking block (303) is arc-shaped.

8. The sealing property detection apparatus for a hydraulic valve having a protection function according to claim 1, characterized by: The detection assembly further comprises cleaning cotton (305); each blocking block (303) is fixedly connected with cleaning cotton (305), and the cleaning cotton (305) is located on the opposite side of the detection cotton (304).

Images