Anti-impact high-pressure hydraulic valve and valve element detection device thereof

Abstract

The invention relates to the technical field of hydraulic element detection, in particular to an anti-impact high-pressure hydraulic valve and a valve element detection device thereof.The anti-impact high-pressure hydraulic valve comprises a detection box used for detecting the hydraulic valve, lifting plates are slidably installed on the two sides of an inner cavity of the detection box through electric sliding blocks, and side plates are fixedly installed on the sides, close to each other, of the lifting plates on the two sides; according to the hydraulic valve detection device, the electric sliding blocks are started to drive the lifting plate to ascend and descend in the detection box, and therefore the hydraulic valve can be conveniently installed on the supporting assembly; when the lifting plate drives the supporting assembly to move downwards, the strength of a valve element of the fixed hydraulic valve and the airtightness test of the interior of the hydraulic valve are carried out, and when a compression rod is compressed to inject air into the hydraulic valve, air can be injected into an air bag at the same time. And after the air in the air bag is completely injected, the air bag blocks the internal port of the hydraulic valve, then clear water is injected into the detection box, and whether continuous bubbles are generated in the clear water or not is observed.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic component detection, in particular to an anti-shock high-pressure hydraulic valve and a valve core detection device thereof. Background Art

[0002] The hydraulic valve is an automatic component operated by pressure oil. It is controlled by the pressure oil of the pressure regulating valve. It is usually used in combination with the electromagnetic pressure regulating valve and can be used to remotely control the on and off of the oil, gas and water pipeline systems of the hydropower station. In order to ensure the normal use of the hydraulic valve, it is necessary to conduct multiple inspections on it before leaving the factory.

[0003] The prior art discloses a Chinese patent with application number CN202410788739.7, which is a sealing detection device for a solenoid valve core. It also discloses that by setting a motor and two limit seats, etc., when the valve core on one limit seat is being tested, the valve core to be tested can be loaded into another limit seat. In this way, after the valve core detection is completed, the motor can drive the other limit seat and the valve core therein to rotate to the detection position for detection, which can save time for loading the valve core.

[0004] The above-mentioned device can increase the speed of valve core detection through a multi-station setting. However, the valve core inside the hydraulic valve will be subjected to strong impact of water when in use. Therefore, the valve core needs to be strength tested to simulate the strong impact of water flow. Moreover, when the hydraulic valve is tested for air tightness, the above-mentioned device cannot simulate the air tightness detection of the hydraulic valve after impact. Summary of the invention

[0005] The object of the present invention is to provide an anti-shock high-pressure hydraulic valve and a valve core detection device thereof to solve the problems raised in the above-mentioned background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A valve core detection device for an anti-shock high-pressure hydraulic valve, the valve core detection device includes a detection box for detecting the hydraulic valve, the anti-shock high-pressure hydraulic valve includes a valve body, a valve core, and a valve seat, the valve core is fixedly installed in the valve body, and the valve seat is fixedly connected to the valve body;

[0008] Lifting plates are slidably installed on both sides of the inner cavity of the detection box through electric sliders, side plates are fixedly installed on the adjacent sides of the lifting plates on both sides, a rotating circle is installed in the middle of the side plate through an electric slider, and a two-way telescopic plate is commonly installed in the middle of one side of the side plates on both sides, and supporting components for supporting the hydraulic valve are installed on the two side plates. A knocking component for knocking the hydraulic valve is provided on the upper part of the hydraulic valve, an upper cylinder connected to the interior of the detection box is fixedly installed on the front side of the detection box, a lower cylinder connected to the interior of the detection box is provided below the upper cylinder, a detection component for strength detection of the hydraulic valve core is provided inside the upper cylinder, and an airtight component for detecting the airtightness of the hydraulic valve is fixedly installed in the inner cavity of the lower cylinder.

[0009] The supporting assembly includes a vertical groove circumferentially opened in the middle of the rotating circle, an abutment bar is slidably installed in the vertical groove, and an adjustment ring is arranged outside the multiple abutment bars. The adjustment ring is rotatably connected to the side plate through an electric slider, and multiple pull plates are hinged on the adjustment ring. The pull plates are hinged to the corresponding abutment bars on the side away from the adjustment ring. An electric push rod fixedly connected to the rotating circle is arranged in the middle of the multiple vertical grooves, and a sealing plate is fixedly installed on the telescopic end of the electric push rod.

[0010] The knocking assembly includes a rotating rod rotatably connected to the side plate, one end of the rotating rod is fixedly installed with an extrusion wheel, an upper groove opened on the side plate is provided below the extrusion wheel, an extrusion plate is slidably installed in the upper groove, a spring is commonly connected between the lower part of the extrusion plate and the upper groove, a lower groove opened on the side plate is provided below the upper groove, a force control plate is slidably installed in the lower groove through an electric slider, a pressing rod is slidably installed on the force control plate, a spring is provided on the outer sleeve of the pressing rod, pulleys are fixedly installed on the other side of the rotating rod and the rotating circle, and a belt is provided between the two pulleys.

[0011] The knocking assembly also includes a T-shaped plate fixedly connected to the bidirectional telescopic plate, with adjustment grooves on both sides of the T-shaped plate, in which a movable plate is slidably installed through an electric slider, a vertical rod is slidably installed in the middle of one side of the movable plate, a placement frame is fixedly installed under the vertical rod, a gear is rotatably installed in the middle of the placement frame, a vibration ring is rotatably installed in the middle of the gear through a round rod, a cylinder is fixedly installed on the placement frame, and an L-shaped toothed plate is fixedly installed at the telescopic end of the cylinder.

[0012] The L-shaped toothed plate meshes with the gear below, and vertical plates are fixedly installed on both sides of the upper end surface of the T-shaped plate. A flip plate is rotatably installed in the middle of the vertical plate, and a two-way push rod is fixedly installed at the rear of the flip plate. A rotating wheel is fixedly installed at the telescopic end of the two-way push rod, and the rotating wheel and the corresponding round rod in front of it are connected with a pull rope. A groove opened on the T-shaped plate is provided between the two vertical plates, and a middle plate is slidably installed in the groove through an electric slider, and the upper part of the middle plate is hinged to the side of the flip plate away from the two-way push rod.

[0013] The detection component includes a telescopic cylinder. A sleeve plate is fixedly installed on the outside of the telescopic cylinder. A traction wheel is rotatably installed on the sleeve plate through an electric slider. A tooth groove is formed at the telescopic end of the telescopic cylinder. The traction wheel meshes with the tooth groove. A end plate is fixedly installed at the top of the telescopic cylinder. A support platform is fixedly installed at one end of the end plate away from the telescopic cylinder. A first telescopic rod is fixedly installed in the middle of the end plate. The telescopic end of the first telescopic rod penetrates through the support platform and is fixedly installed with a control frame.

[0014] Fixing pieces are installed circumferentially on the support platform. A folding plate is rotatably installed between the control frame and the fixing pieces. A straight plate rotatably connected to the fixing piece is arranged on one side of the folding plate. A抵触 plate is jointly connected between the straight plate and the folding plate. A rotating frame is rotatably installed on the outside of the telescopic cylinder through an electric slider. A plurality of convex blocks are arranged inside the rotating frame. A knocking rod penetrating through the end plate is arranged on one side of the convex block. The side of the knocking rod close to the convex block is spherical, and a spring is sleeved on the outside of the knocking rod.

[0015] The airtight component includes a U-shaped sleeve. A moving strip is slidably installed inside the U-shaped sleeve. Teeth are arranged below the moving strip. A driving gear is rotatably installed at the lower part of the U-shaped sleeve through an electric slide. A through port is formed in the U-shaped sleeve above the driving gear. The driving gear passes through the through port and meshes with the moving strip. A gas cylinder is fixedly installed at one end of the moving strip. An airbag communicated with the gas cylinder is fixedly installed on the outside of the gas cylinder.

[0016] A compression rod is slidably installed inside the gas cylinder. A connecting plate fixedly connected to the moving strip is arranged above the compression rod. A second telescopic rod is fixedly installed on the connecting plate. The telescopic end of the second telescopic rod is fixedly connected to the compression rod. An air valve is arranged on one side of the airbag.

[0017] The detection box is made of transparent material. After injecting gas into the hydraulic valve, clear water is injected into the detection box.

[0018] The beneficial effects of the present invention:

[0019] 1. In the present invention, the two ends of the hydraulic valve are respectively aligned with the side plates on both sides, and then the two-way telescopic plate is retracted. At this time, the side plates on both sides respectively squeeze the two sides of the hydraulic valve. Then the electric slider is turned on to drive the regulation circle to rotate. When the regulation circle rotates, it synchronously drives a plurality of pull plates to rotate. When the plurality of pull plates rotate, they respectively drive the corresponding abutting strips to slide in the vertical grooves until the plurality of abutting strips abut against the inner cavity side wall of the hydraulic valve. At this time, the hydraulic valve is fixed under the support and abutment of the abutting strips. The electric slider is turned on to drive the rotating circle to rotate. When the rotating circle rotates, it drives the hydraulic valve to rotate synchronously, so as to facilitate the knocking component to perform circumferential knocking on both sides of the hydraulic valve to detect its external impact resistance when the hydraulic valve completes the external knocking.

[0020] 2. The present invention drives the rotating circle to rotate by opening the electric slider, and when the rotating circle rotates, the rotating rod is synchronously driven to rotate through the pulley and the belt, and when the rotating rod rotates, the extrusion wheel is synchronously driven to rotate, and when the extrusion wheel rotates, the extrusion plate is intermittently pushed, and the extrusion plate moves up and down reciprocatingly under the extrusion of the extrusion wheel, and when the extrusion plate slides up and down, the pressing rod is moved downward so that the pressing rod knocks on the outer sides of the hydraulic valve, and the electric slider is opened to drive the control plate to be raised and lowered in the lower groove, so as to adjust the knocking depth of the pressing rod, thereby realizing the control of the knocking force on both sides of the hydraulic valve.

[0021] 3. The present invention drives the middle plate to slide back and forth in the groove by opening the electric slider. When the middle plate slides in the groove, the flip plate flips. When the flip plate flips, the two-way push rod away from one end of the middle plate is synchronously lifted up and down under the drive of the flip plate. At this time, the rotating wheels on both sides of the two-way push rod drive the stretching to flip upward. At this time, the round rod connected to the stretching drives the placement frame to slide downward. When the placement frame slides downward, the vibration ring impacts the middle connection of the hydraulic valve. By impacting the outside of the hydraulic valve, the impact resistance of the outside of the hydraulic valve can be detected, thereby reflecting the strength of the hydraulic valve.

[0022] 4. The present invention opens the electric slider to move the fixed hydraulic valve to the front port of the upper cylinder, and then the electric slider is opened to rotate the traction wheel. The rotation of the traction wheel causes the telescopic end of the telescopic cylinder to move toward the hydraulic valve, and then the first telescopic rod is pushed forward to move the control frame forward. When the control frame moves forward, it drives the folding plate to rotate on the fixing part. When the folding plate rotates, the straight plate drives the resistance plate to move. At this time, multiple resistance plates move away from each other along the axis of the control frame until the inner cavity of the hydraulic valve is resisted and fixed. Then the electric slider is opened to drive the rotating frame to rotate. When the rotating frame rotates, the knocking rod is squeezed by the protrusion, so that the knocking rod knocks the valve core of the hydraulic valve to detect the strength and impact resistance of the valve core of the hydraulic valve, and at the same time simulates the impact of water flow on the valve core. After the impact detection of the valve core, the hydraulic valve is tested for air tightness to observe whether the hydraulic valve can be used normally after the impact.

[0023] 5. In the present invention, the lifting plate slides downward along the side wall of the detection box through the electric slider. At this time, the fixed hydraulic valve moves downward synchronously until the port of the hydraulic valve faces the axis of the lower cylinder. Subsequently, the electric slider starts to drive the driving gear to rotate. When the driving gear rotates, it drives the moving bar to slide forward within the U-shaped sleeve. At this time, the moving bar drives the air cylinder to move into the port of the hydraulic valve. Then, the second telescopic rod is controlled to reciprocate. When the second telescopic rod reciprocates, it drives the compression rod to inject the gas in the air cylinder into the hydraulic valve. When the compression rod compresses to inject gas into the hydraulic valve, it can also inject gas into the airbag. After the gas injection into the airbag is completed, the airbag seals the inner port of the hydraulic valve. Then, clear water is injected into the detection box, and the clear water submerges the hydraulic valve. Subsequently, it is observed whether there are continuous bubbles in the clear water. If there are continuous bubbles, it indicates that the airtightness of the hydraulic valve is unqualified and the hydraulic valve is damaged. Otherwise, it indicates that the airtightness of the hydraulic valve is qualified and the hydraulic valve is not damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is a schematic diagram of the overall left-side structure of the present invention;

[0026] Figure 2 is a schematic diagram of the overall right-side structure of the present invention;

[0027] Figure 3 is a schematic diagram of the support assembly structure of the present invention;

[0028] Figure 4 is a schematic diagram of the partial structure of the knocking assembly of the present invention;

[0029] Figure 5 is a schematic diagram of the detection assembly structure of the present invention;

[0030] Figure 6 is a schematic diagram of the airtight assembly structure of the present invention;

[0031] Figure 7 is a schematic diagram of the front cross-section structure of the detection assembly of the present invention;

[0032] Figure 8 is a schematic diagram of the partial structure of the support assembly of the present invention;

[0033] Fig. 9 is a schematic diagram of the inner side structure of the side plate of the present invention.

[0034] The reference numerals in the drawings are as follows:

[0035] 1. Detection box; 2. Bidirectional telescopic plate; 20. Side plate; 21. Lifting plate; 22. Rotating ring; 221. Vertical groove; 222. Contact bar; 223. Regulation ring; 224. Pulling plate; 225. Electric push rod; 226. Sealing plate; 23. Rotating rod; 231. Extrusion wheel; 232. Upper groove; 233. Extrusion plate; 234. Lower groove; 235. Force control plate; 236. Pressing rod; 24. T-shaped plate; 241. Moving plate; 242. Placing rack; 243. Gear; 244. Vibration ring; 245. Cylinder; 246. L-shaped toothed plate; 247. Flipping plate; 248. Bidirectional push rod; 249. Middle plate; 3. Upper cylinder; 31. Telescopic cylinder; 32. Sleeve plate; 33. Traction wheel; 34. Tooth groove; 35. End plate; 351. First telescopic rod; 352. Control frame; 36. Support platform; 361. Fixing piece; 362. Folding plate; 363. Straight plate; 364. Contact plate; 37. Rotating frame; 371. Convex block; 372. Knocking rod; 4. Lower cylinder; 41. C-shaped sleeve; 42. Moving bar; 421. Connecting plate; 422. Second telescopic rod; 423. Compression rod; 43. Driving tooth; 44. Air cylinder; 45. Air bag; 451. Air valve. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0037] An impact-proof high-pressure hydraulic valve and its spool detection device are for the detection of high-pressure and large-flow hydraulic components. The detection workpiece in the present invention is a high-pressure hydraulic valve in hydraulic components. The present invention performs airtightness and spool strength detection operations on it. Among them, the pressure sensor belongs to a kind of mechanical sensor.

[0038] As Figure 1-Figure 9 shown, the spool detection device includes a detection box 1 for detecting the hydraulic valve. The hydraulic valve structure includes a valve body, a spool, and a valve seat. The spool is fixedly installed in the impact-proof valve body, and the on-off of the hydraulic valve is controlled by manipulating the high-pressure-resistant spool. And the valve seat is fixedly connected to the valve body;

[0039] Lifting plates 21 are slidably installed on both sides of the inner cavity of the detection box 1 through electric sliders, and side plates 20 are fixedly installed on the adjacent sides of the lifting plates 21 on both sides, and a rotating circle 22 is installed in the middle of the side plate 20 through an electric slider. A two-way telescopic plate 2 is commonly installed in the middle of one side of the side plates 20 on both sides, and support components for supporting the hydraulic valve are installed on the two side plates 20. A knocking component for knocking the hydraulic valve is provided on the upper part of the hydraulic valve. An upper cylinder 3 connected to the interior of the detection box 1 is fixedly installed on the front side of the detection box 1, and a lower cylinder 4 connected to the interior of the detection box 1 is provided below the upper cylinder 3. A detection component for strength detection of the hydraulic valve core is provided inside the upper cylinder 3, and an airtight component for detecting the airtightness of the hydraulic valve is fixedly installed in the inner cavity of the lower cylinder 4.

[0040] The electric slider is opened to drive the lifting plate 21 to move up and down in the test box 1, so as to facilitate the installation of the hydraulic valve on the support assembly. When the lifting plate 21 drives the support assembly to move downward, the strength of the valve core of the fixed hydraulic valve and the internal air tightness test of the hydraulic valve are performed.

[0041] The supporting assembly includes a vertical groove 221 circumferentially opened in the middle of the rotating circle 22, abutment bars 222 are slidably installed in the vertical groove 221, and a regulating circle 223 is provided outside the plurality of abutment bars 222. The regulating circle 223 is rotatably connected to the side plate 20 through an electric slider, and a plurality of pull plates 224 are hinged on the regulating circle 223. The pull plates 224 are respectively hinged to the corresponding abutment bars 222 on the side away from the regulating circle 223. An electric push rod 225 fixedly connected to the rotating circle 22 is provided in the middle of the plurality of vertical grooves 221, and a sealing plate 226 is fixedly installed at the telescopic end of the electric push rod 225.

[0042] When the hydraulic valve is fixed, the two ends of the hydraulic valve are aligned with the side plates 20 on both sides respectively, and then the two-way telescopic plate 20 is opened to retract. At this time, the side plates 20 on both sides squeeze the two sides of the hydraulic valve respectively, and then the electric slider is opened to drive the regulating ring 223 to rotate. When the regulating ring 223 rotates, it simultaneously drives multiple pull plates 224 to rotate. When the multiple pull plates 224 rotate, they respectively drive the corresponding abutment bars 222 to slide in the vertical groove 221 until the multiple abutment bars 222 abut against the inner cavity side wall of the hydraulic valve. At this time, the hydraulic valve is fixed under the support and abutment of the abutment bars 222, and the electric slider is opened to drive the rotating circle 22 to rotate. When the rotating circle 22 rotates, it drives the hydraulic valve to rotate synchronously, so that when the hydraulic valve completes the external knocking, the knocking component can realize circumferential knocking on both sides of the hydraulic valve to detect its external impact resistance.

[0043] The knocking assembly includes a rotating rod 23 rotatably connected to the side plate 20, one end of the rotating rod 23 is fixedly installed with an extrusion wheel 231, an upper groove 232 opened on the side plate 20 is provided below the extrusion wheel 231, an extrusion plate 233 is slidably installed in the upper groove 232, a spring is commonly connected between the extrusion plate 233 and the upper groove 232, a lower groove 234 opened on the side plate 20 is provided below the upper groove 232, a force control plate 235 is slidably installed in the lower groove 234 through an electric slider, a pressing rod 236 is slidably installed on the force control plate 235, a spring is provided on the outer sleeve of the pressing rod 236, pulleys are fixedly installed on the other side of the rotating rod 23 and the rotating circle 22, and a belt is provided between the two pulleys.

[0044] When the fixed hydraulic valve is knocked, the electric slider opens to drive the rotating circle 22 to rotate, and when the rotating circle 22 rotates, the rotating rod 23 is synchronously driven to rotate through the pulley and the belt, and when the rotating rod 23 rotates, the extrusion wheel 231 is synchronously driven to rotate, and when the extrusion wheel 231 rotates, the extrusion plate 233 is intermittently pushed, and the extrusion plate 233 moves up and down reciprocatingly under the extrusion of the extrusion wheel 231, and the extrusion plate 233 moves downward when sliding up and down, so that the pressing rod 236 knocks on the outer sides of the hydraulic valve, and the electric slider is opened to drive the control plate 235 to be raised and lowered in the lower groove 234, so as to adjust the knocking depth of the pressing rod 236, thereby realizing the control of the knocking force of the two sides of the hydraulic valve.

[0045] When the rotating ring 22 rotates to knock on both sides of the hydraulic valve, the rotation of the rotating ring 22 can also drive the hydraulic valve to rotate circumferentially. When the hydraulic valve rotates circumferentially, the knocking can be completed on the outside in a sufficiently uniform manner.

[0046] The knocking assembly also includes a T-shaped plate 24 fixedly connected to the bidirectional telescopic plate 2, and adjustment grooves are opened on both sides of the T-shaped plate 24. A movable plate 241 is slidably installed in the adjusting groove through an electric slider, a vertical rod is slidably installed in the middle of one side of the movable plate 241, and a placement rack 242 is fixedly installed under the vertical rod. A gear 243 is rotatably installed in the middle of the placement rack 242, and a vibration ring 244 is rotatably installed in the middle of the gear 243 through a round rod. A cylinder 245 is fixedly installed on the placement rack 242, and an L-shaped tooth plate 246 is fixedly installed on the telescopic end of the cylinder 245.

[0047] When the middle connection of the hydraulic valve is knocked, the electric slider opens and drives the middle plate 249 to slide back and forth in the groove. When the middle plate 249 slides in the groove, the flip plate 247 flips. When the flip plate 247 flips, the two-way push rod 248 at one end away from the middle plate 249 is lifted up and down synchronously under the drive of the flip plate 247. At this time, the wheels on both sides of the two-way push rod 248 drive the stretching to flip upward. At this time, the round rod connected to the stretching drives the placement frame 242 to slide downward. When the placement frame 242 slides downward, the vibration ring 244 impacts the middle connection of the hydraulic valve. By impacting the outside of the hydraulic valve, the impact resistance of the outside of the hydraulic valve can be detected, thereby reflecting the strength of the hydraulic valve.

[0048] The L-shaped toothed plate 246 meshes with the gear 243 below, and vertical plates are fixedly installed on both sides of the upper end surface of the T-shaped plate 24. A flip plate 247 is rotatably installed in the middle of the vertical plate. A two-way push rod 248 is fixedly installed at the rear of the flip plate 247. The telescopic ends of the two-way push rod 248 are fixedly installed with rotating wheels, and the rotating wheel and the corresponding round rod in front of it are connected with a pull rope. A groove opened on the T-shaped plate 24 is provided between the two vertical plates, and a middle plate 249 is slidably installed in the groove through an electric slider. The upper part of the middle plate 249 is hinged to the side of the flip plate 247 away from the two-way push rod 248.

[0049] The detection component includes a telescopic cylinder 31, a sleeve plate 32 is fixedly installed on the outside of the telescopic cylinder 31, a traction wheel 33 is rotatably installed on the sleeve plate 32 through an electric slider, a tooth groove 34 is opened at the telescopic end of the telescopic cylinder 31, and the traction wheel 33 engages with the tooth groove 34; an end plate 35 is fixedly installed on the top of the telescopic cylinder 31, a support platform 36 is fixedly installed on the end of the end plate 35 away from the telescopic cylinder 31, a first telescopic rod 351 is fixedly installed in the middle of the end plate 35, and the telescopic end of the first telescopic rod 351 passes through the support platform 36 and is fixedly installed with a control frame 352.

[0050] A fixing part 361 is circumferentially installed on the support platform 36, and a folding plate 362 is rotatably installed between the control frame 352 and the fixing part 361. A straight plate 363 rotatably connected to the fixing part 361 is provided on one side of the folding plate 362, and a resistance plate 364 is commonly connected between the straight plate 363 and the folding plate 362. A rotating frame 37 is rotatably installed on the outside of the telescopic cylinder 31 through an electric slider, and a plurality of protrusions 371 are provided in the rotating frame 37. A knocking rod 372 that penetrates the end plate 35 is provided on one side of the protrusion 371, and a pressure sensor (model: PT124G-116) is provided on the knocking rod 372. The knocking rod 372 is spherical near the protrusion 371, and a spring is provided on the outer sleeve of the knocking rod 372.

[0051] When performing a strength test on the spool of a hydraulic valve, the electric slider is opened to move the fixed hydraulic valve to the front port of the upper cylinder 3. Subsequently, the electric slider is opened to rotate the traction wheel 33. The rotation of the traction wheel 33 causes the telescopic end of the telescopic cylinder 31 to move towards the hydraulic valve. Then, the first telescopic rod 351 pushes forward to move the control frame 351 forward. When the control frame 351 moves forward, it drives the folding plate 362 to rotate on the fixing member 361. When the folding plate 362 rotates, it drives the contact plate 364 to move through the straight plate 363. At this time, multiple contact plates 364 move away from each other along the axis of the control frame 352 until they contact and fix the inner cavity of the hydraulic valve. Subsequently, the electric slider is opened to drive the rotating frame 37 to rotate. When the rotating frame 37 rotates, it squeezes the knocking rod 372 through the convex block 371, so that the knocking rod 372 knocks the spool of the hydraulic valve to detect the strength and impact resistance of the spool of the hydraulic valve, and at the same time simulates the impact of water flow on the spool. After the impact test of the spool, an airtight test is performed on the hydraulic valve to observe whether the hydraulic valve can be used normally after being impacted.

[0052] The airtight assembly includes a U-shaped sleeve 41. A moving bar 42 is slidably installed in the U-shaped sleeve 41. Teeth are provided below the moving bar 42. A driving gear 43 is rotatably installed at the lower part of the U-shaped sleeve 41 through an electric slide. A through hole is provided on the U-shaped sleeve 41 above the driving gear 43. The driving gear 43 passes through the through hole and meshes with the moving bar 42. One end of the moving bar 42 is fixedly installed with an air cylinder 44. An airbag 45 communicated with the air cylinder 44 is fixedly installed outside the air cylinder 44.

[0053] After the strength test of the spool is completed, the electric slider causes the lifting plate 20 to slide downward on the side wall of the test box 1. At this time, the fixed hydraulic valve moves downward synchronously until the port of the hydraulic valve faces the axis of the lower cylinder 4. Subsequently, the electric slider is opened to drive the driving gear 43 to rotate. When the driving gear 43 rotates, it drives the moving bar 42 to slide forward in the U-shaped sleeve 41. At this time, the moving bar 42 drives the air cylinder 44 to move into the port of the hydraulic valve. Then, the second telescopic rod 422 is controlled to reciprocate. When the second telescopic rod 422 reciprocates, it drives the compression rod 423 to inject the gas in the air cylinder 44 into the hydraulic valve. When the compression rod 423 compresses to inject gas into the hydraulic valve, it can also inject gas into the airbag 45 until the airbag 45 is filled with gas and then the airbag 45 seals the inner port of the hydraulic valve. Subsequently, the test box 1 is filled with clear water, and the clear water covers the hydraulic valve. Then, it is observed whether there are continuous bubbles in the clear water. If there are continuous bubbles, it means that the airtightness of the hydraulic valve is unqualified and the hydraulic valve is damaged. Otherwise, it means that the airtightness of the hydraulic valve is qualified and the hydraulic valve is not damaged.

[0054] A compression rod 423 is slidably installed in the air cylinder 44, a connecting plate 421 fixedly connected to the moving bar 42 is provided above the compression rod 423, a second telescopic rod 422 is fixedly installed on the connecting plate 421, the telescopic end of the second telescopic rod 422 is fixedly connected to the compression rod 423, and an air valve 451 is provided on one side of the airbag 45.

[0055] The detection box 1 is made of transparent material. After the gas is injected into the hydraulic valve, clean water is injected into the detection box 1.

[0056] When the present invention is in use, the two ends of the hydraulic valve are aligned with the side plates 20 on both sides respectively, and then the two-way telescopic plate 20 is opened to retract. At this time, the side plates 20 on both sides squeeze the two sides of the hydraulic valve respectively, and then the electric slider is opened to drive the regulating ring 223 to rotate. When the regulating ring 223 rotates, it simultaneously drives the multiple pull plates 224 to rotate. When the multiple pull plates 224 rotate, they respectively drive the corresponding abutment bars 222 to slide in the vertical groove 221 until the multiple abutment bars 222 abut against the inner cavity side wall of the hydraulic valve. At this time, the hydraulic valve is fixed under the support and abutment of the abutment bars 222;

[0057] The electric slider is opened to drive the rotating circle 22 to rotate, and the rotating circle 22 drives the hydraulic valve to rotate synchronously when rotating, so that when the hydraulic valve completes the external knocking, the knocking component can realize circumferential knocking on both sides of the hydraulic valve to detect its external impact resistance. The electric slider is opened to drive the rotating circle 22 to rotate, and the rotating circle 22 drives the rotating rod 23 to rotate synchronously through the pulley and the belt when rotating. When the rotating rod 23 rotates, it drives the extrusion wheel 231 to rotate synchronously. When the extrusion wheel 231 rotates, the extrusion plate 233 is intermittently pushed. The extrusion plate 233 moves up and down reciprocatingly under the extrusion of the extrusion wheel 231, and the extrusion When the plate 233 slides up and down, the pressing rod 236 is moved downward so that the pressing rod 236 knocks on the outer sides of the hydraulic valve, and the electric slider is opened to drive the control plate 235 to be raised and lowered in the lower groove 234, so as to adjust the knocking depth of the pressing rod 236, thereby realizing the control of the knocking force of the two sides of the hydraulic valve. When the rotating ring 22 rotates to knock on the two sides of the hydraulic valve, the rotation of the rotating ring 22 can also drive the hydraulic valve to rotate in an annular direction. When the hydraulic valve rotates in an annular direction, the knocking can be completed on the outside in a sufficiently uniform manner when the knocking is completed;

[0058] The electric slider starts to drive the middle plate 249 to slide back and forth in the groove. When the middle plate 249 slides in the groove, the flip plate 247 flips. When the flip plate 247 flips, the two-way push rod 248 at the end far from the middle plate 249 is driven by the flip plate 247 to lift up and down synchronously. At this time, the rotating wheels on both sides of the two-way push rod 248 drive the stretching to flip upwards. At this time, the round rod connected to the stretching drives the placement rack 242 to slide downwards. When the placement rack 242 slides downwards, the vibration ring 244 impacts the middle connection part of the hydraulic valve. By impacting the outside of the hydraulic valve, the impact resistance of the outside of the hydraulic valve can be detected, thereby reflecting the strength of the hydraulic valve. The electric slider starts to move the fixed hydraulic valve to the front port of the upper cylinder 3. Subsequently, the electric slider starts to make the traction wheel 33 rotate. The rotation of the traction wheel 33 makes the telescopic end of the telescopic cylinder 31 move towards the hydraulic valve. Subsequently, the first telescopic rod 351 pushes forward to make the control frame 351 move forward. When the control frame 351 moves forward, it drives the folding plate 362 to rotate on the fixing part 361. When the folding plate 362 rotates, it drives the contact plate 364 to move through the straight plate 363. At this time, a plurality of contact plates 364 move away from each other along the axis of the control frame 352 until they contact and fix the inner cavity of the hydraulic valve. Subsequently, the electric slider starts to drive the rotating frame 37 to rotate. When the rotating frame 37 rotates, it squeezes the knocking rod 372 through the convex block 371, so that the knocking rod 372 knocks the valve core of the hydraulic valve to detect the strength and impact resistance of the valve core of the hydraulic valve, and at the same time simulates the impact of water flow on the valve core. After detecting the impact on the valve core, an airtight test is carried out on the hydraulic valve to observe whether the hydraulic valve can be used normally after being impacted;

[0059] The electric slider makes the lifting plate 20 slide downwards on the side wall of the detection box 1. At this time, the fixed hydraulic valve moves downwards synchronously until the port of the hydraulic valve faces the axis of the lower cylinder 4. Subsequently, the electric slider starts to drive the driving gear 43 to rotate. When the driving gear 43 rotates, it drives the moving bar 42 to slide forward in the C-shaped sleeve 41. At this time, the moving bar 42 drives the air cylinder 44 to move into the port of the hydraulic valve. Subsequently, the second telescopic rod 422 is controlled to reciprocate. When the second telescopic rod 422 reciprocates, it drives the compression rod 423 to inject the gas in the air cylinder 44 into the hydraulic valve. When the compression rod 423 compresses and injects gas into the hydraulic valve, it can also inject gas into the airbag 45 until the airbag 45 is filled with gas and then the airbag 45 seals the inner port of the hydraulic valve. Subsequently, clear water is injected into the detection box 1 and the clear water submerges the hydraulic valve. Subsequently, it is observed whether there are continuous bubbles generated. If there are continuous bubbles generated, it means that the airtightness of the hydraulic valve is unqualified and the hydraulic valve is damaged. Otherwise, it means that the airtightness of the hydraulic valve is qualified and the hydraulic valve is not damaged.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A valve core detection device for an anti-shock high-pressure hydraulic valve, the valve core detection device comprising a detection box (1) for detecting the hydraulic valve, characterized in that: The anti-shock high-pressure hydraulic valve comprises a valve body, a valve core and a valve seat, the valve core is fixedly installed in the valve body, and the valve seat is fixedly connected to the valve body; Lifting plates (21) are slidably mounted on both sides of the inner cavity of the detection box (1) via electric sliders, side plates (20) are fixedly mounted on the sides of the lifting plates (21) on both sides that are close to each other, a rotating circle (22) is mounted in the middle of the side plates (20) via electric sliders, a bidirectional telescopic plate (2) is commonly mounted in the middle of one side of the side plates (20) on both sides, a supporting assembly for supporting the hydraulic valve is mounted on both side plates (20), a knocking assembly for knocking the hydraulic valve is disposed on the upper part of the hydraulic valve, an upper cylinder (3) connected to the interior of the detection box (1) is fixedly mounted on the front side of the detection box (1), a lower cylinder (4) connected to the interior of the detection box (1) is disposed below the upper cylinder (3), a detection assembly for performing strength detection on the valve core of the hydraulic valve is disposed inside the upper cylinder (3), and an airtight assembly for detecting the airtightness of the hydraulic valve is fixedly mounted in the inner cavity of the lower cylinder (4).

2. The valve core detection device for an anti-shock high-pressure hydraulic valve according to claim 1, characterized in that: The support assembly comprises a vertical groove (221) circumferentially arranged in the middle of the rotating circle (22), a contact strip (222) is slidably installed in the vertical groove (221), a plurality of the contact strips (222) are provided with a regulating ring (223) outside, the regulating ring (223) is rotatably connected to the side plate (20) through an electric slider, a plurality of pull plates (224) are hinged on the regulating ring (223), and the pull plates (224) are respectively hinged to the corresponding contact strips (222) at the side away from the regulating ring (223), an electric push rod (225) fixedly connected to the rotating circle (22) is provided in the middle of the plurality of vertical grooves (221), and a sealing plate (226) is fixedly installed at the telescopic end of the electric push rod (225).

3. The valve core detection device for an anti-shock high-pressure hydraulic valve according to claim 1, characterized in that: The knocking assembly comprises a rotating rod (23) rotatably connected to the side plate (20), an extrusion wheel (231) is fixedly mounted on one end of the rotating rod (23), an upper groove (232) opened on the side plate (20) is provided below the extrusion wheel (231), an extrusion plate (233) is slidably mounted in the upper groove (232), a spring is commonly connected between the lower part of the extrusion plate (233) and the upper groove (232), a lower groove (234) opened on the side plate (20) is provided below the upper groove (232), a force control plate (235) is slidably mounted in the lower groove (234) via an electric slider, a pressing rod (236) is slidably mounted on the force control plate (235), a spring is sleeved on the outer side of the pressing rod (236), a belt pulley is fixedly mounted on the other side of the rotating rod (23) and the rotating circle (22), and a belt is provided between the two belt pulleys.

4. The valve core detection device for an anti-shock high-pressure hydraulic valve according to claim 1, characterized in that: The knocking assembly also includes a T-shaped plate (24) fixedly connected to the bidirectional telescopic plate (2), with adjustment grooves provided on both sides of the T-shaped plate (24), a movable plate (241) being slidably mounted in the adjustment grooves via an electric slider, a vertical rod being slidably mounted in the middle of one side of the movable plate (241), a placement frame (242) being fixedly mounted below the vertical rod, a gear (243) being rotatably mounted in the middle of the placement frame (242), a vibration ring (244) being rotatably mounted in the middle of the gear (243) via a round rod, a cylinder (245) being fixedly mounted on the placement frame (242), and an L-shaped toothed plate (246) being fixedly mounted at the telescopic end of the cylinder (245).

5. The valve core detection device for an anti-shock high-pressure hydraulic valve according to claim 4, characterized in that: The L-shaped toothed plate (246) meshes with the gear (243) below. Vertical plates are fixedly installed on both sides of the upper end surface of the T-shaped plate (24). A flip plate (247) is rotatably installed in the middle of the vertical plate. A two-way push rod (248) is fixedly installed at the rear of the flip plate (247). The telescopic ends of the two-way push rod (248) are fixedly installed with rotating wheels. The rotating wheels and the corresponding round rods in front of them are connected with a pull rope. A groove is provided on the T-shaped plate (24) between the two vertical plates. A middle plate (249) is slidably installed in the groove through an electric slider. The upper part of the middle plate (249) is hinged to the side of the flip plate (247) away from the two-way push rod (248).

6. The valve core detection device for an anti-shock high-pressure hydraulic valve according to claim 1, characterized in that: The detection assembly comprises a telescopic cylinder (31), a sleeve plate (32) is fixedly mounted on the outside of the telescopic cylinder (31), a traction wheel (33) is rotatably mounted on the sleeve plate (32) via an electric slider, a tooth groove (34) is provided at the telescopic end of the telescopic cylinder (31), the traction wheel (33) is engaged with the tooth groove (34), an end plate (35) is fixedly mounted on the top of the telescopic cylinder (31), a support platform (36) is fixedly mounted on one end of the end plate (35) away from the telescopic cylinder (31), a first telescopic rod (351) is fixedly mounted in the middle of the end plate (35), and a control frame (352) is fixedly mounted on the telescopic end of the first telescopic rod (351), which passes through the support platform (36).

7. The valve core detection device for an anti-shock high-pressure hydraulic valve according to claim 6, characterized in that: A fixing member (361) is annularly mounted on the support platform (36), a folding plate (362) is rotatably mounted between the control frame (352) and the fixing member (361), a straight plate (363) rotatably connected to the fixing member (361) is disposed on one side of the folding plate (362), a resisting plate (364) is commonly connected between the straight plate (363) and the folding plate (362), a rotating frame (37) is rotatably mounted on the outside of the telescopic cylinder (31) via an electric slider, a plurality of protrusions (371) are disposed inside the rotating frame (37), a knocking rod (372) penetrating the end plate (35) is disposed on one side of the protrusion (371), the knocking rod (372) is spherical on the side close to the protrusion (371), and a spring is sleeved on the outside of the knocking rod (372).

8. The valve core detection device for an anti-shock high-pressure hydraulic valve according to claim 1, characterized in that: The airtight assembly includes a U-shaped sleeve (41). A moving bar (42) is slidably installed inside the U-shaped sleeve (41). Teeth are provided below the moving bar (42). A driving gear (43) is rotatably installed through electric sliding at the lower part of the U-shaped sleeve (41). A through opening is provided in the U-shaped sleeve (41) above the driving gear (43). The driving gear (43) passes through the through opening and meshes with the moving bar (42). One end of the moving bar (42) is fixedly installed with an air cylinder (44). An air bag (45) communicated with the air cylinder (44) is fixedly installed outside the air cylinder (44).

9. The valve core detection device for an anti-shock high-pressure hydraulic valve according to claim 8, characterized in that: A compression rod (423) is slidably installed inside the air cylinder (44). A connecting plate (421) fixedly connected to the moving bar (42) is provided above the compression rod (423). A second telescopic rod (422) is fixedly installed on the connecting plate (421). The telescopic end of the second telescopic rod (422) is fixedly connected to the compression rod (423). An air valve (451) is provided on one side of the air bag (45).

10. The valve core detection device for an anti-shock high-pressure hydraulic valve according to claim 9, characterized in that: The detection box (1) is made of a transparent material. After the gas is injected into the hydraulic valve, clean water is injected into the detection box (1).

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