An electric-free hydraulic cylinder body air tightness inspection device

Abstract

This invention relates to the field of non-electric hydraulic cylinder technology and discloses a non-electric hydraulic cylinder body airtightness inspection device, including a testing water tank. An outer protective plate is snapped onto the surface of the testing water tank. An adjusting plate is fixedly connected inside the testing water tank. A conveying roller is fixedly connected to the inner wall of the testing water tank near the adjusting plate. A control plate is provided on the end face of the testing water tank near the conveying roller. A sealing air pump is provided on the end face of the testing water tank near the adjusting plate. When in use, the hydraulic cylinder to be inspected is placed on the surface of the conveying roller within the material conveying component. The control plate is activated, controlling the lifting push group to sequentially lift and rotate, pushing the hydraulic cylinder inside to slide along the surface of the conveying roller and the telescopic pressure plate. Simultaneously, the lifting rod lifts and lowers, driving the fixed shell to lift and lower, which in turn drives the horizontal plate to lift and lower.

Description

Technical Field

[0001] This invention relates to the field of electric-free hydraulic cylinder equipment technology, specifically to an electric-free hydraulic cylinder body airtightness inspection device. Background Technology

[0002] An electro-hydraulic cylinder is an actuator that achieves linear reciprocating motion without the need for external power, relying solely on the pressure of the hydraulic system itself. Its core feature is that it uses a hydraulic pump station to provide power, converting liquid pressure energy into mechanical energy. It is suitable for heavy-duty, high-thrust applications, such as construction machinery and metallurgical equipment.

[0003] Existing non-electric hydraulic cylinder air tightness inspection devices mainly include direct pressure testing devices, differential pressure testing devices, flow testing devices, and water immersion (bubble) testing devices. Among them, the water immersion (bubble) testing device simply seals the cylinder and places it in a water tank for inspection, which results in low efficiency, affects the pass rate, and wastes manpower and resources. Summary of the Invention

[0004] The purpose of this invention is to provide a device for checking the air tightness of a hydraulic cylinder body without electricity, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a device for inspecting the airtightness of a hydraulic cylinder body without electro-hydraulic power. It includes a test water tank, an outer protective plate snapped onto the surface of the test water tank, an adjusting plate fixedly connected inside the test water tank, and a conveying roller fixedly connected to the inner wall of the test water tank near the adjusting plate. The device also includes: A material conveying component, the material conveying component including a telescopic pressure plate, the surface of the telescopic pressure plate being provided with a lifting push assembly, and the surface of the lifting push assembly away from the telescopic pressure plate being provided with a lifting rod; A sealing component, comprising an air pump housing, an inner housing slidably connected to the inner wall of the air pump housing, and a fixing rod fixedly connected to the surface of the inner housing; The pressing component includes a height adjusting plate, a telescopic adjusting plate is fixedly connected to the end face of the height adjusting plate, and an air pump fixing shell is fixedly connected to the end face of the telescopic adjusting plate away from the height adjusting plate.

[0006] Furthermore, a control plate is provided on the end face of the detection water tank near the conveyor roller, a sealing air pump is provided on the end face of the detection water tank near the adjustment plate, a pressure air pump is provided on the surface of the outer protective plate near the sealing air pump, there are two outer protective plates, the two outer protective plates are symmetrically distributed on the surface of the detection water tank, there are two control plates, the two control plates are symmetrically distributed on the surface of the conveyor roller, and there are two sealing air pumps, the two sealing air pumps are symmetrically distributed on the surface of the adjustment plate.

[0007] Furthermore, the material transfer component includes a fixed shell, an elastic pressure plate fixedly connected to the inner wall of the fixed shell, an inner control plate fixedly connected to the inner wall of the fixed shell near the elastic pressure plate, a telescopic pressure column provided on the inner wall of the inner control plate, a compression spring fixedly connected to the surface of the inner control plate near the telescopic pressure column, a clamping plate fixedly connected to the inner wall of the telescopic pressure column away from the inner control plate, two telescopic pressure plates symmetrically distributed around the surface of the control plate, the surface of the telescopic pressure plate away from the control plate fixedly connected to the end face of the detection water tank, the inner wall of the fixed shell near the control plate engaging with the end face of the lifting rod away from the control plate, two fixed shells symmetrically distributed around the surface of the elastic pressure plate, four elastic pressure plates symmetrically distributed around the center of the surface of the fixed shell, four inner control plates symmetrically distributed around the center of the inner wall of the fixed shell, and the surface of the clamping plate penetrating the inner wall of the telescopic pressure column to the inner wall of the telescopic pressure column away from the lifting rod.

[0008] Furthermore, a horizontal plate is fixedly connected to the surface of the fixed shell away from the inner control panel. A horizontal bar is slidably connected to the inner wall of the horizontal plate. A sliding plate is fixedly connected to the end face of the horizontal bar away from the horizontal plate. A sliding rod is slidably connected to the inner wall of the sliding plate. A groove is provided on the inner wall of the detection water tank near the sliding plate. There are four horizontal plates, which are divided into two groups, with two horizontal plates in each group. The two groups of horizontal plates are symmetrically distributed with respect to the surface of the horizontal bar. There are two sliding plates, which are symmetrically distributed with respect to the surface of the horizontal plate. There are two sliding rods, which are symmetrically distributed with respect to the surface of the sliding plate. The two end faces of the sliding rods are fixedly connected to the inner wall of the detection water tank.

[0009] Furthermore, the sealing component includes an internally threaded shaft, the inner wall of which is threadedly connected to an externally threaded rod. A locking block is fixedly connected to the end face of the externally threaded rod away from the internally threaded shaft. An auxiliary sliding rod is fixedly connected to the surface of the locking block near the externally threaded rod. The surface of the sealing air pump is slidably connected to the inner wall of the air pump housing. The surface of the air pump housing engages with the inner wall of the adjusting plate. The surface of the inner housing is slidably connected to the inner wall of the air pump housing. Four fixing rods are provided, symmetrically distributed around the center of the inner housing surface. The surface of the externally threaded rod penetrates the inner wall of the air pump housing and is rotatably connected to it. Two auxiliary sliding rods are provided, symmetrically distributed around the surface of the locking block. The surface of the auxiliary sliding rod penetrates the inner walls of both the air pump housing and the inner housing and is slidably connected to them.

[0010] Furthermore, a rubber pad is provided on the surface of the card block away from the auxiliary slide rod, and a telescopic push rod is provided on the inner wall of the sealing air pump near the rubber pad. A connecting push plate is provided on the surface of the telescopic push rod near the rubber pad. There are two telescopic push rods, which are symmetrically distributed with respect to the surface of the rubber pad. The surface of the telescopic push rod penetrates the inner wall of the air pump housing and is slidably connected to the inner wall of the air pump housing.

[0011] Furthermore, the pressing component includes a slot plate, and a lifting push rod is provided on the inner wall of the pressing air pump near the slot plate. An upper pressure plate is fixedly connected to the end face of the lifting push rod near the slot plate. The surface of the slot plate away from the lifting push rod is fixedly connected to the surface of the telescopic adjustment plate. There are two lifting push rods, which are symmetrically distributed on the surface of the pressing air pump. The surface of the upper pressure plate near the lifting push rod is slidably connected to the inner wall of the slot plate.

[0012] Furthermore, the surface of the lower-pressure air pump near the upper pressure plate is provided with an output shaft. An output belt is drivenly connected to the surface of the output shaft near the upper pressure plate. Output teeth are rotatably connected to the inner wall of the output belt on the side away from the output shaft. A sliding tooth plate is meshed with the surface of the output teeth on the side away from the output belt. A connecting column plate is fixedly connected to the end face of the sliding tooth plate away from the output teeth. A protective sliding rod is fixedly connected to the surface of the connecting column plate near the sliding tooth plate. A fixed column is fixedly connected to the surface of the connecting column plate near the protective sliding rod. A side pressure plate is fixedly connected to the end face of the fixed column on the side away from the connecting column plate. The surface of the output shaft penetrates... The inner wall of the upper pressure plate is rotatably connected to the inner wall of the upper pressure plate. The surface of the output tooth penetrates the inner wall of the upper pressure plate and is rotatably connected to the inner wall of the upper pressure plate. The surface of the sliding tooth plate away from the output tooth is slidably connected to the inner wall of the upper pressure plate. The surface of the protective sliding rod penetrates the inner wall of the upper pressure plate and is slidably connected to the inner wall of the upper pressure plate. There are two sliding tooth plates, which are symmetrically distributed around the surface of the output tooth. The end face of the connecting column plate near the fixed column is fixedly connected to the surface of the side pressure plate near the fixed column. There are two fixed columns, which are symmetrically distributed around the surface of the connecting column plate.

[0013] The present invention has the following beneficial effects: When this invention is in use, the hydraulic cylinder to be inspected is placed on the surface of the conveyor roller within the material transfer component. The control panel is activated, controlling the lifting push group to move up and down sequentially and rotate, pushing the hydraulic cylinder inside to slide along the surface of the conveyor roller and the telescopic pressure plate. Simultaneously, the lifting rod moves up and down, driving the fixed shell to move up and down. The fixed shell then drives the horizontal plate to move up and down, and the horizontal plate movement drives the horizontal rod to move up and down. The horizontal rod movement drives the sliding plate to slide along the surface of the sliding rod and the inner wall of the sliding groove, ultimately keeping the fixed shell level with the cylinder body, allowing it to smoothly move to the inner wall of the fixed shell and interact with the spring pressure plate. The contact causes elastic deformation, and the elastic plate uses the elastic force generated by the deformation to compress the hydraulic cylinder, stabilizing the cylinder body. Then, the internal control board controls the telescopic pressure column to rise and fall, so that its end face contacts the cylinder body and stabilizes it through compression. At the same time, the compression spring assists the telescopic pressure column in stabilizing the cylinder body through its own elastic force. Meanwhile, when the telescopic pressure column rises and falls, it drives the clamping plate to move, so that its surface contacts the cylinder body and clamps its end face to prevent the cylinder body from falling off during subsequent inspections. When inspecting cylinder bodies of different sizes, the inspection can be carried out by replacing the fixed shell, reducing the number of parts used.

[0014] When this invention is in use, within the sealing component, after the cylinder to be inspected is fixed inside the fixed housing, the adjusting plate is activated, causing the air pump housing to slide. The air pump housing then drives the inner housing and the fixing rod to slide, ultimately aligning them with the cylinder inside the fixed housing. At this time, the sealing air pump is activated, driving the internal threaded shaft to rotate. Through the threaded connection, this drives the external threaded rod to slide along the inner wall of the air pump housing. When the external threaded rod slides, it drives the locking block to move. Simultaneously, when the locking block moves, it drives the auxiliary sliding rod to slide along the inner walls of the air pump housing and the inner housing. Through the auxiliary sliding rods on both sides within the locking block... The sliding rod ensures the smooth advancement of the locking block. Simultaneously, as the locking block advances, it drives the rubber gasket, ultimately allowing it to smoothly enter the cylinder to be inspected for sealing. After sealing, the sealing air pump controls the telescopic push rod to extend and retract along the inside of the air pump housing. When the telescopic push rod pushes, it drives the connecting push plate to move, eventually reaching the surface of the rubber gasket and fixing it. Then, the internal threaded shaft rotates in the opposite direction, ultimately separating the locking block from the rubber gasket. Finally, the telescopic push rod again drives the connecting push plate to separate from the rubber gasket.

[0015] When in use, the height adjustment plate and telescopic adjustment plate on the end face of the outer protective plate inside the pressing component are adjusted in height and position to ensure that the pressing air pump is vertically aligned with the fixed housing. After the cylinder body is sealed, the pressing air pump starts, driving the lifting push rod to move up and down. The movement of the lifting push rod causes the upper pressing plate to move up and down along the inner wall of the slot plate, eventually bringing the other side of the upper pressing plate into contact with the surface of the cylinder body to be inspected. Simultaneously, the pressing air pump controls the output shaft to rotate along the inner wall of the upper pressing plate. When the output shaft rotates, it drives the output belt to drive the output teeth on the other side of the inner wall to rotate along the inner wall of the upper pressing plate. When the output teeth rotate, through surface meshing, they drive the sliding tooth plate to rotate along the inner wall of the upper pressing plate. The sliding toothed plate slides along the inner wall of the upper pressure plate. When the sliding toothed plate slides, it drives the connecting column plate to move. The connecting column plate then drives the protective sliding rod to slide along the inner wall of the upper pressure plate. Through the sliding movement of the sliding toothed plate and the protective sliding rod, the connecting column plate can be kept stable during operation and will not shift its position, thus better stabilizing the cylinder. At the same time, when the connecting column plate moves, it drives the fixed column and the side pressure plate to move, eventually bringing the inner surface of the side pressure plate into contact with the surface of the cylinder to be inspected, stabilizing the cylinder. In addition, the triangular fixation of the side pressure plate surface by the connecting column plate and the two fixed columns further stabilizes the side pressure plate, reducing shaking during inspection and completing the inspection more effectively.

[0016] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the material transfer component structure of the present invention; Figure 4 This is a cross-sectional view of the material transfer component structure of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of part A in the image; Figure 6 This is a schematic diagram of the sealing component structure of the present invention; Figure 7 This is an enlarged view of part B of the present invention; Figure 8 This is a schematic diagram of the pressing component structure of the present invention; Figure 9 This is a cross-sectional view of the upper pressure plate structure of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Material conveying component; 2. Sealing component; 3. Pressing component; 4. Control panel; 5. Conveying roller; 6. Sealing air pump; 7. Pressing air pump; 8. Detection water tank; 9. Adjustment plate; 10. Outer protective plate; 11. Telescopic pressure plate; 12. Lifting pusher assembly; 13. Lifting rod; 14. Fixed shell; 15. Spring pressure plate; 16. Inner control panel; 17. Telescopic pressure column; 18. Compression spring; 19. Clamping plate; 20. Horizontal plate; 21. Horizontal bar; 22. Slide plate; 23. Slide rod; 24. Slide groove; 31. Air pump housing; 2. Inner protective shell; 33. Fixing rod; 34. Internal threaded shaft; 35. External threaded rotating rod; 36. Locking block; 37. Auxiliary slide rod; 38. Rubber pad; 39. Telescopic push rod; 40. Connecting push plate; 41. Height adjustment plate; 42. Telescopic adjustment plate; 43. Air pump fixing shell; 44. Slot plate; 45. Lifting push rod; 46. Upper pressure plate; 47. Output shaft; 48. Output belt; 49. Output tooth; 50. Sliding tooth plate; 51. Connecting column plate; 52. Protective slide rod; 53. Fixed column; 54. Side pressure plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-9 This invention relates to a device for inspecting the airtightness of a hydraulic cylinder body without electricity. It includes a test tank 8, an outer protective plate 10 snapped onto the surface of the test tank 8, an adjusting plate 9 fixedly connected inside the test tank 8, and a conveying roller 5 fixedly connected to the inner wall of the test tank 8 near the adjusting plate 9. The hydraulic cylinder to be inspected is placed on the surface of the conveying roller 5. The device also includes: Material conveying component 1 includes a telescopic pressure plate 11. A lifting push group 12 is provided on the surface of the telescopic pressure plate 11. When the control plate 4 is activated, the lifting push group 12 is controlled to lift and rotate sequentially, pushing the hydraulic cylinder inside to slide along the surface of the conveying roller 5 and the telescopic pressure plate 11. A lifting rod 13 is provided on the surface of the lifting push group 12 away from the telescopic pressure plate 11. At the same time, the lifting rod 13 lifts and lowers, driving the fixed shell 14 to lift and lower. The sealing component 2 includes an air pump housing 31. When the cylinder to be inspected is fixed inside the fixed housing 14, the adjusting plate 9 is activated, which drives the air pump housing 31 to slide. The air pump housing 31 will then drive the inner housing 32 and the fixing rod 33 to slide, eventually aligning it with the cylinder inside the fixed housing 14. The inner housing 32 is slidably connected to the inner wall of the air pump housing 31, and the fixing rod 33 is fixedly connected to the surface of the inner housing 32. The pressing component 3 includes a height adjustment plate 41. The height adjustment plate 41 and the telescopic adjustment plate 42 on the end face of the outer protective plate 10 are used for height and position adjustment so that the pressing air pump 7 can be vertically aligned with the fixed shell 14. The end face of the height adjustment plate 41 is fixedly connected to the telescopic adjustment plate 42, and the end face of the telescopic adjustment plate 42 away from the height adjustment plate 41 is fixedly connected to the air pump fixed shell 43.

[0022] A control plate 4 is provided on the end face of the detection water tank 8 near the conveyor roller 5. A sealing air pump 6 is provided on the end face of the detection water tank 8 near the adjustment plate 9. A pressure air pump 7 is provided on the surface of the outer protective plate 10 near the sealing air pump 6. There are two outer protective plates 10, which are symmetrically distributed on the surface of the detection water tank 8. There are two control plates 4, which are symmetrically distributed on the surface of the conveyor roller 5. There are two sealing air pumps 6, which are symmetrically distributed on the surface of the adjustment plate 9.

[0023] The material transfer component 1 includes a fixed shell 14, which drives the horizontal plate 20 to move up and down, eventually bringing the fixed shell 14 level with the cylinder body. This allows the fixed shell 14 to smoothly move to the inner wall of the fixed shell 14 and come into contact with the spring pressure plate 15, causing it to undergo elastic deformation. The spring pressure plate 15 is fixedly connected to the inner wall of the fixed shell 14. The spring pressure plate 15 uses the elastic force generated by deformation to compress the hydraulic cylinder and stabilize the cylinder body. An inner control plate 16 is fixedly connected to the inner wall of the fixed shell 14 near the spring pressure plate 15. A telescopic pressure column 17 is provided on the inner wall of the inner control plate 16. The inner control plate 16 controls the telescopic pressure column 17 to move up and down, so that its end face contacts the cylinder body and stabilizes it by compression. A compression spring 18 is fixedly connected to the surface of the inner control plate 16 near the telescopic pressure column 17. The compression spring 18 assists the telescopic pressure column 17 in stabilizing the cylinder body through its own elastic force. A clamping plate 1 is fixedly connected to the inner wall of the telescopic pressure column 17 away from the inner control plate 16. 9. When the telescopic pressure column 17 is raised or lowered, it will drive the clamping plate 19 to move, so that its surface contacts the cylinder body and clamps its end face to prevent the cylinder body from falling off during subsequent inspection. There are two telescopic pressure plates 11, which are symmetrically distributed on the surface of the control plate 4. The surface of the telescopic pressure plate 11 away from the control plate 4 is fixedly connected to the end face of the test water tank 8. The inner wall of the fixed shell 14 near the control plate 4 is clamped to the end face of the lifting rod 13 away from the control plate 4. There are two fixed shells 14, which are symmetrically distributed on the surface of the spring pressure plate 15. There are four spring pressure plates 15, which are symmetrically distributed on the center of the surface of the fixed shell 14. There are four inner control plates 16, which are symmetrically distributed on the center of the inner wall of the fixed shell 14. The surface of the clamping plate 19 penetrates the inner wall of the telescopic pressure column 17 to the inner wall of the telescopic pressure column 17 away from the lifting rod 13.

[0024] A horizontal plate 20 is fixedly connected to the surface of the fixed shell 14 away from the inner control panel 16. The movement of the horizontal plate 20 drives the horizontal bar 21 to move up and down. The horizontal bar 21 is slidably connected to the inner wall of the horizontal plate 20. The movement of the horizontal bar 21 drives the sliding plate 22 to slide along the surface of the sliding bar 23 and the inner wall of the sliding groove 24. The sliding plate 22 is fixedly connected to the end face of the horizontal bar 21 away from the horizontal plate 20. The sliding bar 23 is slidably connected to the inner wall of the sliding plate 22. A sliding groove 24 is provided on the inner wall of the detection water tank 8 near the sliding plate 22. Four horizontal plates 20 are provided, divided into two groups. There are two sets of horizontal plates 20 symmetrically distributed on the surface of the horizontal bar 21. There are four horizontal bars 21, which are divided into two groups, and there are two horizontal bars 21 in each group. The two groups of horizontal bars 21 are symmetrically distributed on the surface of the horizontal plate 20. Each group of horizontal bars 21 is symmetrically distributed on the surface of the slide plate 22. There are two slide plates 22, which are symmetrically distributed on the surface of the horizontal bar 21. There are two slide bars 23, which are symmetrically distributed on the surface of the slide plate 22. The two end faces of the slide bars 23 are fixedly connected to the inner wall of the detection water tank at point 8.

[0025] The sealing component 2 includes an internally threaded shaft 34. When the sealing air pump 6 is started, it drives the internally threaded shaft 34 to rotate. Through a threaded connection, it drives the externally threaded rod 35 to slide along the inner wall of the air pump housing 31. The internally threaded shaft 34 is threadedly connected to the internally threaded shaft 34. When the externally threaded rod 35 slides, it drives the locking block 36 to move. The locking block 36 is fixedly connected to the end face of the externally threaded rod 35 away from the internally threaded shaft 34. When the locking block 36 moves, it drives the auxiliary slide rod 37 to slide along the inner walls of the air pump housing 31 and the inner housing 32. The surface of the locking block 36 near the externally threaded rod 35 is fixedly connected to the auxiliary slide rod 37. Through the auxiliary slide rods 37 on both sides inside the locking block 36, it is possible to ensure... The locking block 36 can be smoothly pushed forward. The surface of the sealed air pump 6 is slidably connected to the inner wall of the air pump housing 31. The surface of the air pump housing 31 is locked to the inner wall of the adjusting plate 9. The surface of the inner housing 32 is slidably connected to the inner wall of the air pump housing 31. There are four fixing rods 33, which are symmetrically distributed around the surface of the inner housing 32. The surface of the external threaded rotating rod 35 penetrates the inner wall of the air pump housing 31 and is rotatably connected to the inner wall of the air pump housing 31. There are two auxiliary sliding rods 37, which are symmetrically distributed around the surface of the locking block 36. The surface of the auxiliary sliding rods 37 penetrates the inner walls of the air pump housing 31 and the inner housing 32 and is slidably connected to the inner walls of the air pump housing 31 and the inner housing 32.

[0026] A rubber gasket 38 is provided on the surface of the locking block 36 away from the auxiliary slide bar 37. When the locking block 36 is pushed forward, it will drive the rubber gasket 38 to move, eventually allowing it to smoothly enter the cylinder body to be inspected for sealing. A telescopic push rod 39 is provided on the inner wall of the sealing air pump 6 near the rubber gasket 38. After sealing is completed, the sealing air pump 6 controls the telescopic push rod 39 to extend and retract along the inside of the air pump housing 31. When the telescopic push rod 39 is pushed, it will drive the connecting push plate 40 to move, eventually reaching the rubber gasket 38. 8. The surface is fixed, and then the internal thread shaft 34 rotates in the opposite direction, eventually causing the locking block 36 to separate from the rubber gasket 38. Then the telescopic push rod 39 drives the connecting push plate 40 to separate from the rubber gasket 38. The surface of the telescopic push rod 39 near the rubber gasket 38 is provided with the connecting push plate 40. There are two telescopic push rods 39, which are symmetrically distributed with respect to the surface of the rubber gasket 38. The surface of the telescopic push rod 39 penetrates the inner wall of the air pump housing 31 and is slidably connected to the inner wall of the air pump housing 31.

[0027] The pressing component 3 includes a slot plate 44. A lifting push rod 45 is provided on the inner wall of the pressing air pump 7 near the slot plate 44. After the cylinder is sealed, the pressing air pump 7 starts, driving the lifting push rod 45 to move up and down. The lifting push rod 45 moves up and down, driving the upper pressure plate 46 to move up and down along the inner wall of the slot plate 44, so that the other side of the upper pressure plate 46 contacts the surface of the cylinder to be inspected. The end face of the lifting push rod 45 near the slot plate 44 is fixedly connected to the upper pressure plate 46. The surface of the slot plate 44 away from the lifting push rod 45 is fixedly connected to the surface of the telescopic adjustment plate 42. There are two lifting push rods 45, which are symmetrically distributed on the surface of the pressing air pump 7. The surface of the upper pressure plate 46 near the lifting push rod 45 is slidably connected to the inner wall of the slot plate 44.

[0028] The surface of the downpressure air pump 7 near the upper pressure plate 46 is provided with an output shaft 47. The downpressure air pump 7 controls the output shaft 47 to rotate along the inner wall of the upper pressure plate 46. When the output shaft 47 rotates, it drives the output belt 48 for transmission. The output belt 48 is connected to the surface of the output shaft 47 near the upper pressure plate 46. The output belt 48 then drives the output teeth 49 on the other side of the inner wall to rotate along the inner wall of the upper pressure plate 46. The inner wall of the output belt 48 away from the output shaft 47 is rotatably connected to the output teeth 49. When the output teeth 49 rotate, through surface meshing, they drive the sliding tooth plate 50 to slide along the inner wall of the upper pressure plate 46, outputting... A sliding tooth plate 50 is meshed with the surface of tooth 49 away from the output belt 48. When the sliding tooth plate 50 slides, it drives the connecting column plate 51 to move. The end face of the sliding tooth plate 50 away from the output tooth 49 is fixedly connected to the connecting column plate 51. The connecting column plate 51 then drives the protective slide rod 52 to slide along the inner wall of the upper pressure plate 46. Through the sliding movement of the sliding tooth plate 50 and the protective slide rod 52, the connecting column plate 51 can be kept stable during operation and will not shift its position, thus better stabilizing the cylinder. The surface of the connecting column plate 51 near the sliding tooth plate 50 is fixedly connected to the protective slide rod 52. A fixed column 53 is fixedly connected to the side surface of the cylinder. A side pressure plate 54 is fixedly connected to the end face of the fixed column 53 away from the connecting column plate 51. When the connecting column plate 51 runs, it drives the fixed column 53 and the side pressure plate 54 to run, eventually making the inner surface of the side pressure plate 54 contact the cylinder body surface to be inspected, stabilizing the cylinder body. At the same time, the triangular fixation of the side pressure plate 54 surface by the connecting column plate 51 and the two fixed columns 53 makes the side pressure plate 54 more stable for the cylinder body, reducing the shaking that occurs during inspection and completing the inspection better. The surface of the output shaft 47 penetrates the inner wall of the upper pressure plate 46 and is rotatably connected to the inner wall of the upper pressure plate 46. The surface of the output tooth 49 penetrates the inner wall of the upper pressure plate 46 and is rotatably connected to the inner wall of the upper pressure plate 46. The surface of the sliding tooth plate 50 away from the output tooth 49 is slidably connected to the inner wall of the upper pressure plate 46. The surface of the protective slide rod 52 penetrates the inner wall of the upper pressure plate 46 and is slidably connected to the inner wall of the upper pressure plate 46. There are two sliding tooth plates 50, which are symmetrically distributed about the surface center of the output tooth 49. The end face of the connecting column plate 51 near the fixed column 53 is fixedly connected to the surface of the side pressure plate 54 near the fixed column 53. There are two fixed columns 53, which are symmetrically distributed about the surface of the connecting column plate 51.

[0029] In use, the hydraulic cylinder to be inspected is placed on the surface of the conveyor roller 5 inside the material transfer component 1. The control panel 4 is activated, controlling the lifting push group 12 to lift and rotate sequentially, pushing the hydraulic cylinder inside to slide along the surface of the conveyor roller 5 and the telescopic pressure plate 11. At the same time, the lifting rod 13 lifts and lowers, driving the fixed shell 14 to lift and lower. The fixed shell 14 then drives the horizontal plate 20 to lift and lower. The horizontal plate 20 changes position, driving the horizontal bar 21 to lift and lower. The horizontal bar 21 changes position, driving the slide plate 22 to slide along the surface of the slide bar 23 and the inner wall of the slide groove 24, ultimately making the fixed shell 14 level with the cylinder body, allowing it to smoothly run to the inner wall of the fixed shell 14. When the spring plate 15 comes into contact, it undergoes elastic deformation. The elastic force generated by the deformation of the spring plate 15 compresses the hydraulic cylinder, stabilizing the cylinder body. Then, the internal control plate 16 controls the telescopic pressure column 17 to rise and fall, so that its end face contacts the cylinder body and stabilizes it through compression. At the same time, the compression spring 18 assists the telescopic pressure column 17 in stabilizing the cylinder body through its own elastic force. Meanwhile, when the telescopic pressure column 17 rises and falls, it drives the clamping plate 19 to move, so that its surface contacts the cylinder body and clamps its end face to prevent the cylinder body from falling off during subsequent inspection. When inspecting cylinder bodies of different sizes, the inspection can be carried out by replacing the fixed shell 14, reducing the number of parts used. At this time, inside the sealing component 2, after the cylinder to be inspected is fixed inside the fixed housing 14, the adjusting plate 9 is activated, causing the air pump housing 31 to slide. The air pump housing 31 will then drive the inner housing 32 and the fixing rod 33 to slide, eventually aligning them with the cylinder inside the fixed housing 14. At this time, the sealing air pump 6 is activated, driving the internal threaded shaft 34 to rotate. Through the threaded connection, it drives the external threaded rod 35 to slide along the inner wall of the air pump housing 31. When the external threaded rod 35 slides, it will drive the locking block 36 to move. At the same time, when the locking block 36 moves, it will drive the auxiliary sliding rod 37 to slide along the inner walls of the air pump housing 31 and the inner housing 32. Through the auxiliary sliding rods on both sides inside the locking block 36... Rod 37 ensures that the locking block 36 can be smoothly pushed forward. At the same time, when the locking block 36 is pushed forward, it will drive the rubber gasket 38 to move, and finally allow it to smoothly enter the cylinder body to be inspected for sealing. After sealing is completed, the sealing air pump 6 controls the telescopic push rod 39 to move forward and backward along the inside of the air pump housing 31. When the telescopic push rod 39 is pushed, it will drive the connecting push plate 40 to move forward and eventually reach the surface of the rubber gasket 38 to fix it. Then, the internal thread shaft 34 rotates in the opposite direction, and finally drives the locking block 36 to separate from the rubber gasket 38. After that, the telescopic push rod 39 drives the connecting push plate 40 to separate from the rubber gasket 38.At this time, the height adjustment plate 41 and telescopic adjustment plate 42 on the end face of the outer protective plate 10 inside the pressing component 3 are adjusted in height and position so that the pressing air pump 7 can be vertically aligned with the fixed shell 14. After the cylinder body is sealed, the pressing air pump 7 is started, driving the lifting push rod 45 to move up and down. The lifting push rod 45 moves the upper pressure plate 46 up and down along the inner wall of the slot plate 44, so that the surface of the other side of the upper pressure plate 46 contacts the surface of the cylinder body to be inspected. At the same time, the pressing air pump 7 controls the output shaft 47 to rotate along the inner wall of the upper pressure plate 46. When the output shaft 47 rotates, it will drive the output belt 48 to drive. The output belt 48 will drive the output teeth 49 on the other side of the inner wall to rotate along the inner wall of the upper pressure plate 46. When the output teeth 49 rotate, through surface meshing connection, it will drive the sliding tooth plate 50 along the inner wall of the upper pressure plate 46. The inner wall of the upper pressure plate 46 slides. When the sliding tooth plate 50 slides, it drives the connecting column plate 51 to move. The connecting column plate 51 then drives the protective slide rod 52 to slide along the inner wall of the upper pressure plate 46. Through the sliding movement of the sliding tooth plate 50 and the protective slide rod 52, the connecting column plate 51 can be kept stable during operation and will not shift its position, thus better stabilizing the cylinder. At the same time, when the connecting column plate 51 moves, it drives the fixed column 53 and the side pressure plate 54 to move, eventually making the inner surface of the side pressure plate 54 contact the surface of the cylinder to be inspected, thus stabilizing the cylinder. In addition, the triangular fixation of the side pressure plate 54 surface by the connecting column plate 51 and the two fixed columns 53 further stabilizes the cylinder, reducing shaking during inspection and completing the inspection better.

[0030] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for checking the air tightness of a hydraulic cylinder body without electricity, comprising a test water tank (8), wherein an outer protective plate (10) is snapped onto the surface of the test water tank (8), an adjusting plate (9) is fixedly connected inside the test water tank (8), and a conveying roller (5) is fixedly connected to the inner wall of the test water tank (8) near the adjusting plate (9), characterized in that, Also includes: Material transfer component (1), the material transfer component (1) includes a telescopic pressure plate (11), the surface of the telescopic pressure plate (11) is provided with a lifting push group (12), and the surface of the lifting push group (12) away from the telescopic pressure plate (11) is provided with a lifting rod (13). The sealing component (2) includes an air pump housing (31), an inner housing (32) is slidably connected to the inner wall of the air pump housing (31), and a fixing rod (33) is fixedly connected to the surface of the inner housing (32). The pressing component (3) includes a height adjustment plate (41), and a telescopic adjustment plate (42) is fixedly connected to the end face of the height adjustment plate (41). An air pump fixing shell (43) is fixedly connected to the end face of the telescopic adjustment plate (42) away from the height adjustment plate (41).

2. The device for checking the air tightness of a hydraulic cylinder body without electro-hydraulic power according to claim 1, characterized in that: The detection water tank (8) is provided with a control plate (4) on the end face near the conveyor roller (5), and a sealing air pump (6) is provided on the end face near the adjustment plate (9). The outer protective plate (10) is provided with a pressure air pump (7) on the surface near the sealing air pump (6). There are two outer protective plates (10), which are symmetrically distributed on the surface of the detection water tank (8). There are two control plates (4), which are symmetrically distributed on the surface of the conveyor roller (5). There are two sealing air pumps (6), which are symmetrically distributed on the surface of the adjustment plate (9).

3. The device for checking the air tightness of a hydraulic cylinder body without electricity according to claim 2, characterized in that: The material transfer component (1) includes a fixed shell (14), with a spring pressure plate (15) fixedly connected to the inner wall of the fixed shell (14). An inner control plate (16) is fixedly connected to the inner wall of the fixed shell (14) near the spring pressure plate (15). A telescopic pressure column (17) is provided on the inner wall of the inner control plate (16). A compression spring (18) is fixedly connected to the surface of the inner control plate (16) near the telescopic pressure column (17). A clamping plate (19) is fixedly connected to the inner wall of the telescopic pressure column (17) away from the inner control plate (16). There are two telescopic pressure plates (11), which are symmetrically distributed on the surface of the control plate (4). The surface of the telescopic pressure plate (11) away from the control plate (4) is connected to the detection plate. The end face of the water tank (8) is fixedly connected. The inner wall of the fixed shell (14) near the control plate (4) is engaged with the end face of the lifting rod (13) away from the control plate (4). There are two fixed shells (14). The two fixed shells (14) are symmetrically distributed on the surface of the spring plate (15). There are four spring plates (15). The four spring plates (15) are symmetrically distributed on the center of the surface of the fixed shell (14). There are four inner control plates (16). The four inner control plates (16) are symmetrically distributed on the center of the inner wall of the fixed shell (14). The surface of the clamping plate (19) penetrates the inner wall of the telescopic pressure column (17) to the inner wall of the telescopic pressure column (17) away from the lifting rod (13).

4. The device for checking the air tightness of a hydraulic cylinder body without electricity according to claim 3, characterized in that: A horizontal plate (20) is fixedly connected to the surface of the fixed shell (14) away from the inner control plate (16). A horizontal bar (21) is slidably connected to the inner wall of the horizontal plate (20). A sliding plate (22) is fixedly connected to the end face of the horizontal bar (21) away from the horizontal plate (20). A sliding rod (23) is slidably connected to the inner wall of the sliding plate (22). A groove (24) is opened on the inner wall of the detection water tank (8) near the sliding plate (22). There are four horizontal plates (20). The four horizontal plates (20) are divided into two groups, and each group has two horizontal plates. The two groups of horizontal plates (20) are aligned with the surface of the horizontal bar (21). The crossbars (21) are arranged in a distribution of four, and the four crossbars (21) are divided into two groups, with two crossbars in each group. The two groups of crossbars (21) are symmetrically distributed on the surface of the cross plate (20). The crossbars (21) in each group are symmetrically distributed on the surface of the slide plate (22). The slide plate (22) is arranged in a distribution of two, and the two slide plates (22) are symmetrically distributed on the surface of the crossbars (21). The slide rods (23) are arranged in a distribution of two, and the two slide rods (23) are symmetrically distributed on the surface of the slide plate (22). The two end faces of the slide rods (23) are fixedly connected to the inner wall of the detection tank (8).

5. The device for checking the air tightness of a hydraulic cylinder body without electricity according to claim 4, characterized in that: The sealing component (2) includes an internally threaded shaft (34), the inner wall of which is threaded with an externally threaded rod (35). A locking block (36) is fixedly connected to the end face of the externally threaded rod (35) away from the internally threaded shaft (34). An auxiliary sliding rod (37) is fixedly connected to the surface of the locking block (36) near the externally threaded rod (35). The surface of the sealing air pump (6) is slidably connected to the inner wall of the air pump housing (31). The surface of the air pump housing (31) is engaged with the inner wall of the adjusting plate (9). The surface of the inner housing (32) is engaged with the inner wall of the air pump housing (31). The wall is slidably connected, and the number of fixed rods (33) is four. The four fixed rods (33) are symmetrically distributed around the surface of the inner shell (32). The surface of the external threaded rotating rod (35) penetrates the inner wall of the air pump shell (31) and is rotatably connected to the inner wall of the air pump shell (31). The number of auxiliary slide rods (37) is two. The two auxiliary slide rods (37) are symmetrically distributed around the surface of the locking block (36). The surface of the auxiliary slide rod (37) penetrates the inner wall of the air pump shell (31) and the inner shell (32) and is slidably connected to the inner wall of the air pump shell (31) and the inner shell (32).

6. The device for checking the air tightness of a hydraulic cylinder body without electro-hydraulic power according to claim 5, characterized in that: A rubber pad (38) is provided on the surface of the card block (36) away from the auxiliary slide bar (37). A telescopic push rod (39) is provided on the inner wall of the sealed air pump (6) near the rubber pad (38). A connecting push plate (40) is provided on the surface of the telescopic push rod (39) near the rubber pad (38). There are two telescopic push rods (39). The two telescopic push rods (39) are symmetrically distributed on the surface of the rubber pad (38). The surface of the telescopic push rod (39) penetrates the inner wall of the air pump housing (31) and is slidably connected to the inner wall of the air pump housing (31).

7. The device for checking the air tightness of a hydraulic cylinder body without electro-hydraulic power according to claim 6, characterized in that: The pressing component (3) includes a slot plate (44). The inner wall of the pressing air pump (7) near the slot plate (44) is provided with a lifting push rod (45). The end face of the lifting push rod (45) near the slot plate (44) is fixedly connected to an upper pressure plate (46). The surface of the slot plate (44) away from the lifting push rod (45) is fixedly connected to the surface of the telescopic adjustment plate (42). There are two lifting push rods (45). The two lifting push rods (45) are symmetrically distributed on the surface of the pressing air pump (7). The surface of the upper pressure plate (46) near the lifting push rod (45) is slidably connected to the inner wall of the slot plate (44).

8. The device for checking the air tightness of a hydraulic cylinder body without electricity according to claim 7, characterized in that: The lower pressure air pump (7) has an output shaft (47) on the surface near the upper pressure plate (46). An output belt (48) is driven to the surface of the output shaft (47) near the upper pressure plate (46). An output tooth (49) is rotatably connected to the inner wall of the output belt (48) away from the output shaft (47). A sliding tooth plate (50) is meshed to the surface of the sliding tooth plate (50) away from the output tooth (49). A connecting column plate (51) is fixedly connected to the end face of the sliding tooth plate (50) away from the output tooth (49). A protective slide rod (52) is fixedly connected to the surface of the connecting column plate (51) near the sliding tooth plate (50). A fixed column (53) is fixedly connected to the surface of the connecting column plate (51) near the protective slide rod (52). A side pressure plate (54) is fixedly connected to the end face of the fixed column (53) away from the connecting column plate (51). The output shaft (47) The surface of the output tooth (49) penetrates the inner wall of the upper pressure plate (46) and is rotatably connected to the inner wall of the upper pressure plate (46). The surface of the sliding tooth plate (50) on the side away from the output tooth (49) is slidably connected to the inner wall of the upper pressure plate (46). The surface of the protective sliding rod (52) penetrates the inner wall of the upper pressure plate (46) and is slidably connected to the inner wall of the upper pressure plate (46). There are two sliding tooth plates (50), and the two sliding tooth plates (50) are symmetrically distributed around the surface of the output tooth (49). The end face of the connecting column plate (51) near the fixed column (53) is fixedly connected to the surface of the side pressure plate (54) near the fixed column (53). There are two fixed columns (53), and the two fixed columns (53) are symmetrically distributed around the surface of the connecting column plate (51).

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