A kind of cone double seal hydraulic pipe fitting detection equipment for fork truck

Abstract

The application relates to the technical field of hydraulic pipe detection, and discloses a fork-lift truck cone double-seal hydraulic pipe detection equipment, which comprises a supporting seat, a detection frame is arranged on the top outer wall of the supporting seat, a detection head is fixedly arranged on the inner wall of the detection frame, sliding rails are arranged in the middle of the outer wall of the supporting seat, a supporting frame for supporting a hydraulic pipe is slidably connected in the sliding rails, and a driving screw is threadedly connected in the supporting frame. The sealing disc moves upwards in the connecting shell, liquid in the connecting shell is extruded, the movement of the sealing disc drives the sliding rod in the connecting sleeve to extend and insert into the hydraulic pipe, the hydraulic pipe is centrally positioned, the sealing disc continues to move, the hydraulic pipe is lifted, and the subsequent spraying detection of the hydraulic pipe is more convenient.

Description

Technical Field

[0001] This invention relates to the field of hydraulic pipe fitting testing technology, specifically to a testing device for forklift-mounted conical double-seal hydraulic pipe fittings. Background Technology

[0002] Forklift hydraulic fittings are components used in hydraulic systems to connect, steer, divert, control, or change the direction of pipelines, ensuring high-pressure transmission of hydraulic oil and system sealing. Conical double-seal hydraulic fittings are a type of hydraulic fitting. During the production process of hydraulic fittings, multi-faceted performance testing is required. To ensure the quality of hydraulic fittings and avoid micro-cracks, testing equipment is used to inspect the outer surface of the hydraulic fittings.

[0003] During the inspection of the outer surface of hydraulic fittings, a penetrant is sprayed onto the surface of the hydraulic fittings and fluorescent detection is performed. The hydraulic fittings need to be positioned and lifted during the spraying process. However, traditional lifting and positioning often uses external positioning, which causes a certain degree of obstruction to the hydraulic fittings, resulting in incomplete spraying of the penetrant and affecting subsequent inspections.

[0004] In response to the existing problems, there is an urgent need to innovate based on the existing hydraulic fitting inspection methods. Summary of the Invention

[0005] The purpose of this invention is to provide a testing device for forklift-mounted conical double-seal hydraulic pipe fittings, to solve the problem mentioned in the background art where, during the testing of the outer surface of hydraulic pipe fittings, a penetrant is sprayed onto the surface of the hydraulic pipe fittings and fluorescent detection is performed. During the spraying process, the hydraulic pipe fittings need to be positioned and lifted. However, traditional lifting and positioning methods often use external positioning, which can cause a certain degree of obstruction to the hydraulic pipe fittings, resulting in incomplete spraying of the penetrant and affecting subsequent testing.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a forklift conical double-seal hydraulic pipe fitting testing device, comprising a support base, a testing frame installed on the top outer wall of the support base, a testing head fixedly installed on the inner wall of the testing frame, a slide rail provided in the middle of the outer wall of the support base, and a support frame for supporting hydraulic pipe fittings slidably connected inside the slide rail, and a drive screw threadedly connected inside the support frame; Also includes: A connecting housing is fixedly installed on one side of the outer wall of the support frame. A lifting sleeve is slidably installed inside the connecting housing. A docking sleeve is installed on the top side of the lifting sleeve, and the lifting sleeve and the docking sleeve are interconnected. A sliding rod is slidably installed inside the docking sleeve. A docking spring for elastic reset is provided between the sliding rod and the docking sleeve. A movable seat for inserting into the inner wall of the hydraulic pipe is provided on the inner wall of the end of the sliding rod. The sealing disc is slidably installed inside the connecting housing, and the bottom of the sealing disc is provided with an adjustment component for adjusting the position of the hydraulic pipe.

[0007] As an optional solution of the forklift conical double-seal hydraulic pipe testing equipment of the present invention, the adjusting component includes a ball joint rod fixedly connected to the outer wall of the sealing disc away from the lifting sleeve. The support base has a limiting groove for limiting the movement of the ball joint rod. The ball joint rod is slidably disposed inside the limiting groove. The limiting groove includes a smooth groove, a lifting groove and a wave groove connected in sequence.

[0008] As an optional solution of the forklift conical double-seal hydraulic pipe testing equipment of the present invention, the adjusting component includes a lifting prism fixedly connected to the outer wall of the sealing disc, the lifting prism is internally threaded with a threaded rod, the end of the threaded rod is provided with a rotating gear, and the two sides of the rotating gear are provided with a first rack and a second rack for driving the rotating gear to rotate.

[0009] As an optional solution of the forklift conical double-seal hydraulic pipe testing equipment of the present invention, the first rack and the second rack are both fixedly installed on the top outer wall of the support base, and a limiting frame for limiting the movement of the threaded rod is installed on the outside of the threaded rod, and the limiting frame is fixedly connected to the connecting housing.

[0010] As an optional solution of the forklift conical double-sealed hydraulic pipe testing equipment of the present invention, wherein: a support block is slidably connected inside the movable seat, and one end of a return spring is fixedly connected to the bottom of the support block, and the other end of the return spring is fixedly connected to the movable seat.

[0011] As an optional solution of the forklift conical double-sealed hydraulic pipe testing equipment of the present invention, wherein: the inside of the docking sleeve is provided with a storage cavity, and a squeezing part for squeezing liquid flow is slidably installed inside the storage cavity, and a connecting hose is provided between the squeezing part and the movable seat.

[0012] As an optional solution of the forklift conical double-sealed hydraulic pipe testing equipment of the present invention, wherein: a core rod is slidably connected inside the lifting sleeve, and a sliding groove for restricting the movement of the core rod is opened on the inner wall of the connecting housing, and the end of the core rod is slidably disposed inside the sliding groove, the sliding groove including a vertical groove and an inclined groove that are interconnected.

[0013] As an optional embodiment of the forklift conical double-seal hydraulic pipe testing equipment of the present invention, wherein: the core rod is slidably disposed inside the sliding rod, and a connecting rod is slidably connected inside the core rod; a movable disc is fixedly connected to the end of the connecting rod; a telescopic spring is provided between the movable disc and the sliding rod; an adjusting rack is fixedly installed on the outer wall of the movable disc away from the connecting rod; an adjusting gear is meshed with the outer side of the adjusting rack; the adjusting gear is fixedly connected to the movable seat; and the adjusting gear is rotatably connected to the sliding rod.

[0014] As an optional solution of the forklift conical double-sealed hydraulic pipe testing equipment of the present invention, wherein: a docking gear is fixedly connected to the outer wall of the docking sleeve away from the sliding rod, a drive rack for driving the docking gear to rotate is installed on the connecting housing, the docking sleeve and the lifting sleeve are rotatably connected, a connecting spring is sleeved on the outside of the lifting sleeve, and the two ends of the connecting spring are fixedly connected to the lifting sleeve and the connecting housing respectively.

[0015] As an optional solution of the forklift conical double-seal hydraulic pipe testing equipment of the present invention, wherein: the drive screw and the slide rail are movably connected, and a drive motor is installed at one end of the drive screw; the drive motor and the slide rail are fixedly connected; a spraying device is provided on the side of the testing frame, and the spraying device and the support base are fixedly connected.

[0016] The present invention has the following beneficial effects: 1. This forklift-use conical double-seal hydraulic pipe fitting inspection equipment uses a sealing disc that moves upward inside the connecting housing to squeeze the liquid inside the housing. The movement of the sealing disc drives the sliding rod inside the docking sleeve to extend and insert into the hydraulic pipe fitting, thus centering the hydraulic pipe fitting. As the sealing disc continues to move, it lifts the hydraulic pipe fitting, making subsequent spraying inspection of the hydraulic pipe fitting more convenient.

[0017] 2. The forklift uses a conical double-seal hydraulic pipe fitting inspection equipment. When the sealing disc drives the lifting sleeve and the docking sleeve to move upward, it will cause the core rod to slide from the inside of the vertical groove into the inside of the inclined groove, thereby pulling the core rod and ultimately causing the adjusting rack to drive the adjusting gear and the movable seat to swing slightly inside the sliding rod, thereby improving the spraying inspection effect of hydraulic pipe fittings with different outer diameters.

[0018] 3. The forklift uses a conical double-seal hydraulic pipe testing equipment. When the lifting sleeve drives the core rod to slide inside the inclined groove, the docking gear on the outside of the docking sleeve will mesh with the drive rack, thereby driving the docking gear, docking sleeve and movable seat to rotate. The lifting and reciprocating motion of the lifting sleeve will drive the hydraulic pipes set on the outside of the sliding rod and support block to rotate back and forth, further improving the spraying and testing effect of hydraulic pipes. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a partial cross-sectional structural diagram of the support base of the present invention.

[0021] Figure 3 This is a schematic cross-sectional view of the connecting housing structure of the present invention.

[0022] Figure 4 This is a schematic diagram of the planar structure of the limiting groove of the present invention.

[0023] Figure 5 This is a schematic diagram of the connection structure between the rotating gear and the first rack of the present invention.

[0024] Figure 6 For the present invention Figure 3 Enlarged structural diagram at point A in the middle.

[0025] Figure 7 This is a schematic diagram of the cross-sectional structure of the docking sleeve of the present invention.

[0026] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B.

[0027] Figure 9 For the present invention Figure 7 Enlarged structural diagram at point C.

[0028] Figure 10 This is a schematic diagram of the connection structure between the connecting housing and the drive rack of the present invention.

[0029] In the diagram: 1. Support base; 2. Slide rail; 3. Spraying equipment; 4. Inspection frame; 5. Inspection head; 6. Drive motor; 7. Drive screw; 8. Support bracket; 9. Connecting housing; 10. Sealing plate; 11. Ball joint rod; 12. Limiting groove; 121. Smooth groove; 122. Lifting groove; 123. Wave groove; 13. Lifting sleeve; 14. Connecting spring; 15. Core rod; 16. Sliding groove; 161. Vertical groove; 162. Inclined groove; 17. Connecting sleeve; 18. Connecting gear; 19. Drive rack; 20. Sliding rod; 21. Connecting spring; 22. Connecting rod; 23. Storage cavity; 24. Extrusion section; 25. Connecting hose; 26. Telescopic spring; 27. Movable disc; 28. Adjusting rack; 29. ​​Adjusting gear; 30. Movable seat; 31. Support block; 32. Return spring; 33. Lifting prism; 34. Threaded rod; 35. Rotating gear; 36. Limiting frame; 37. First rack; 38. Second rack. Detailed Implementation

[0030] 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.

[0031] Example 1, please refer to Figures 1 to 10 A forklift-mounted conical double-seal hydraulic pipe fitting testing device includes a support base 1, a testing frame 4 mounted on the top outer wall of the support base 1, a testing head 5 fixedly mounted on the inner wall of the testing frame 4, a slide rail 2 provided in the middle of the outer wall of the support base 1, and a support frame 8 for supporting hydraulic pipe fittings slidably connected inside the slide rail 2, and a drive screw 7 threadedly connected inside the support frame 8; it also includes a connecting housing 9, fixedly mounted on one side of the outer wall of the support frame 8, a lifting sleeve 13 slidably mounted inside the connecting housing 9, a docking sleeve 17 mounted on the top side of the lifting sleeve 13, and the lifting sleeve 13 and the docking sleeve 17 communicating with each other, a sliding rod 20 slidably mounted inside the docking sleeve 17, a docking spring 21 for elastic reset provided between the sliding rod 20 and the docking sleeve 17, and a movable seat 30 for penetrating the inner wall of the hydraulic pipe fitting provided on the inner wall of the end of the sliding rod 20; The sealing plate 10 is slidably installed inside the connecting housing 9. The bottom of the sealing plate 10 is provided with an adjustment component for adjusting the position of the hydraulic pipe. The drive screw 7 is movably connected to the slide rail 2, and a drive motor 6 is installed at one end of the drive screw 7. The drive motor 6 is fixedly connected to the slide rail 2. A spraying device 3 is provided on the side of the detection frame 4, and the spraying device 3 is fixedly connected to the support base 1. The adjusting component includes a ball head rod 11 fixedly connected to the outer wall of the sealing plate 10 on the side away from the lifting sleeve 13. The support base 1 has a limiting groove 12 for limiting the movement of the ball head rod 11. The ball head rod 11 is slidably disposed inside the limiting groove 12. The limiting groove 12 includes a smooth groove 121, a lifting groove 122 and a wave groove 123 connected in sequence. First, the hydraulic fitting to be tested is placed on the support frame 8. Then, the drive motor 6 is started. The output end of the drive motor 6 is fixedly connected to the drive screw 7, which will drive the drive screw 7 to rotate inside the slide rail 2. The drive screw 7 is threadedly connected to the support frame 8. When the drive screw 7 rotates, it will drive the support frame 8 to slide inside the slide rail 2, thereby realizing the conveying of the hydraulic fitting on the support frame 8. The top of the support base 1 is equipped with a spraying device 3. When the support frame 8 moves the hydraulic fitting to the position of the spraying device 3, the spraying device will... The nozzle on the device 3 sprays penetrating liquid onto the hydraulic fittings on the support frame 8. As the support frame 8 continues to move, it transports the hydraulic fittings into the interior of the inspection frame 4. The inspection head 5 installed on the inspection frame 4 is used to inspect the micro-cracks of the hydraulic fittings under ultraviolet light. The ultraviolet light can be installed on the inspection frame 4. It should be noted that the inspection head 5, the spraying device 3, and the ultraviolet light are all existing technologies. In order to improve the illumination of the ultraviolet light, those skilled in the art can design the inspection frame 4 as a shell space that does not affect the normal movement of the hydraulic fittings, so as to achieve closed inspection. When the support bracket 8 slides inside the slide rail 2, the support bracket 8 will synchronously drive the side-fixed connecting housing 9 to move. A ball joint rod 11 is provided at the bottom of the connecting housing 9. When the connecting housing 9 moves forward with the support bracket 8, the ball joint rod 11 slides inside the limiting groove 12. When the ball joint rod 11 slides from the smoothing groove 121 into the lifting groove 122, the ball joint rod 11 is restricted by the smoothing groove 121, causing the ball joint rod 11 and the sealing disc 10 fixed at its end to move upwards. This allows the sealing disc 10 to slide inside the connecting housing 9. The connecting housing 9 contains liquid. When the sealing disc 10 slides upwards, it will compress the liquid inside the connecting housing 9, causing the compressed liquid to... The liquid first flows into the interior of the lifting sleeve 13, which is connected to the docking sleeve 17. The liquid then flows through the lifting sleeve 13 into the docking sleeve 17. It should be noted that at this time, the lifting sleeve 13 is supported by the connecting spring 14 and remains stationary, without moving upward. The liquid entering the docking sleeve 17 will push against the sliding rod 20 that is slidably connected inside the docking sleeve 17, causing the sliding rod 20 to slide inside the docking sleeve 17. During the sliding process, the sliding rod 20 compresses the docking spring 21, causing the sliding rod 20 to extend and drive the movable seat 30 to penetrate into the hydraulic fitting. When the sliding rod 20 slides to its maximum position within the docking sleeve 17, the sealing disc 10 is in contact with the bottom of the lifting sleeve 13. As the ball head rod 11 continues to slide, when it slides from the lifting groove 122 into the wave groove 123, it will cause the sealing disc 10 to move further upward. At this time, the sealing disc 10 will squeeze the lifting sleeve 13, which in turn will cause the lifting sleeve 13 to slide upward along with the docking sleeve 17 and the sliding rod 20. As the lifting sleeve 13 slides upward, it will also squeeze the connecting spring 14, which will cause the sliding rod 20 to lift the hydraulic fittings and allow the hydraulic fittings to contact the support frame. The hydraulic pipe is separated from the support frame 8, which facilitates the subsequent spraying of penetrating liquid by the spraying equipment 3. By lifting the hydraulic pipe, the support frame 8 avoids obstructing the hydraulic pipe when the spraying equipment 3 sprays penetrating liquid on the surface of the hydraulic pipe. Furthermore, by inserting the sliding rod 20 into the interior of the hydraulic pipe and allowing the sliding rod 20 to penetrate deep into the middle of the hydraulic pipe before lifting, the stability of the lifting of the hydraulic pipe is effectively ensured, while avoiding obstruction of the outer surface of the hydraulic pipe and avoiding affecting the subsequent spraying of the surface of the hydraulic pipe. After the hydraulic pipe is sprayed with penetrating liquid, it is moved to the bottom of the detection frame 4 to detect micro-cracks on the surface of the hydraulic pipe.

[0032] As an optional solution for the adjustment component of the present invention: the adjustment component includes a lifting prism 33 fixedly connected to the outer wall of the sealing disk 10, a threaded rod 34 is threadedly connected inside the lifting prism 33, a rotating gear 35 is provided at the end of the threaded rod 34, and a first rack 37 and a second rack 38 for driving the rotating gear 35 to rotate are provided on both sides of the rotating gear 35. The first rack 37 and the second rack 38 are both fixedly mounted on the top outer wall of the support base 1. A limiting frame 36 for limiting the movement of the threaded rod 34 is installed on the outside of the threaded rod 34, and the limiting frame 36 is fixedly connected to the connecting housing 9. When the connecting housing 9 moves along with the support frame 8, it drives the rotating gear 35 at the bottom of the connecting housing 9 to move synchronously. In the initial stage of movement, the rotating gear 35 first meshes with the second rack 38. As the connecting housing 9 moves, the rotating gear 35 rotates, which drives the threaded rod 34 to rotate synchronously. The threaded rod 34 is threadedly connected to the lifting prism 33, and the threaded rod 34 is restricted by the limiting frame 36. The threaded rod 34 is rotatably connected to the limiting frame 36, allowing the threaded rod 34 to rotate only on the limiting frame 36. As the threaded rod 34 rotates... The movement causes the lifting prism 33 and the sealing plate 10 fixed on the lifting prism 33 to move upward. The lifting prism 33 and the connecting housing 9 can only slide up and down and cannot deflect. The upward movement of the sealing plate 10 squeezes the liquid inside the connecting housing 9 and finally allows the liquid to enter the interior of the docking sleeve 17 through the lifting sleeve 13. This pushes the sliding rod 20 inside the docking sleeve 17 to slide forward and finally allows the sliding rod 20 to slide to the maximum position inside the docking sleeve 17. At this time, the sliding rod 20 passes through the middle of the hydraulic pipe and the sealing plate 10 is in contact with the bottom of the lifting sleeve 13. As the rotating gear 35 continues to mesh with the second rack 38, it will continue to drive the sealing disc 10 to move upward, and the sealing disc 10 will drive the lifting sleeve 13 to move upward, thereby driving the docking sleeve 17 and the sliding rod 20 to move upward, thereby lifting the hydraulic pipe and separating the hydraulic pipe from the support frame 8, so as to facilitate the subsequent spraying of the surface of the hydraulic pipe by the spraying equipment 3. It should be noted that the rotating gear 35 only meshes with the adjusting rack 28 when it moves to the position of the spraying equipment 3. Before moving to the spraying equipment 3, the rotating gear 35 slides between the first rack 37 and the second rack 38 and will not mesh with them to cause deflection.

[0033] Example 2 is an improvement upon Example 1, addressing the issue of ensuring the stability of hydraulic fittings during the lifting process. For details, please refer to [link / reference needed]. Figures 1 to 10 The movable seat 30 has a support block 31 slidably connected inside, and one end of a return spring 32 is fixedly connected to the bottom of the support block 31. The other end of the return spring 32 is fixedly connected to the movable seat 30. The inside of the docking sleeve 17 is provided with a storage cavity 23. Inside the storage cavity 23, a squeezing part 24 for squeezing liquid flow is slidably installed. A connecting hose 25 is provided between the squeezing part 24 and the movable seat 30. When the sealing disc 10 slides inside the connecting housing 9, and before it contacts the bottom of the lifting sleeve 13, as the sealing disc 10 moves upward, it drives the sliding rod 20 to slide inside the docking sleeve 17. As the sliding rod 20 gradually slides inside the docking sleeve 17, the right end of the sliding rod 20 will abut against the left end of the extrusion part 24. Figure 7 and Figure 8 As the sliding rod 20 continues to slide to the left, it will press against the squeezing part 24 and allow the squeezing part 24 to slide inside the storage cavity 23, squeezing the liquid inside the storage cavity 23. The liquid inside the storage cavity 23 will flow into the interior of the movable seat 30 through the connecting hose 25. The liquid flowing into the movable seat 30 will support the support block 31 inside the movable seat 30 and allow the support block 31 to slide out of the movable seat 30. It will also stretch the return spring 32 fixed on the outer wall of the support block 31. The movement of the support block 31 will achieve the internal support and positioning of the hydraulic pipe. When the left side of the sliding rod 20 is in contact with the inner wall of the docking sleeve 17, the support block 31 has completed the positioning of the hydraulic pipe. At this time, the sliding rod 20 slides to the maximum position inside the docking sleeve 17, and the sealing plate 10 is in contact with the bottom of the lifting sleeve 13. The end of the support block 31 is provided with an elastic rubber sheet to improve the tightness of the contact with the inner wall of the hydraulic pipe. As the sealing disc 10 continues to move upward, it drives the lifting sleeve 13, the docking sleeve 17, and the sliding rod 20 to move upward, thereby lifting the hydraulic pipe. By first inserting the sliding rod 20 into the middle of the hydraulic pipe and then using the support block 31 for positioning, and then lifting it, the stability of the hydraulic pipe during lifting is effectively improved. Compared with the method of positioning one end of the hydraulic pipe, the support block 31 only needs a smaller force to achieve stable support and lifting of the hydraulic pipe.

[0034] Example 3 is an improvement upon Example 2. It addresses the issue of poor coating results at the joints when the outer surface of hydraulic fittings is not a smooth plane but rather a joint shape with multiple fittings of different outer diameters. For details, please refer to [link to example]. Figures 1 to 10 The lifting sleeve 13 is slidably connected to the core rod 15. The inner wall of the connecting housing 9 is provided with a sliding groove 16 for limiting the movement of the core rod 15. The end of the core rod 15 is slidably disposed inside the sliding groove 16. The sliding groove 16 includes a vertical groove 161 and an inclined groove 162 that are interconnected. The core rod 15 is slidably disposed inside the sliding rod 20, and a connecting rod 22 is slidably connected inside the core rod 15. A movable disk 27 is fixedly connected to the end of the connecting rod 22. A telescopic spring 26 is provided between the movable disk 27 and the sliding rod 20. An adjusting rack 28 is fixedly installed on the outer wall of the movable disk 27 away from the connecting rod 22. An adjusting gear 29 is meshed with the outer side of the adjusting rack 28. The adjusting gear 29 is fixedly connected to the movable seat 30, and the adjusting gear 29 is rotatably connected to the sliding rod 20. When the sealing disc 10 drives the lifting sleeve 13 to slide upward, the core rod 15 will move upward synchronously with the lifting sleeve 13, sliding inside the sliding groove 16. As the sealing disc 10 drives the lifting sleeve 13 upward, the core rod 15 slides inside the vertical groove 161. When the core rod 15 slides to the top of the vertical groove 161, the height at which the lifting sleeve 13 drives the docking sleeve 17 and sliding rod 20 upward has already separated the hydraulic fittings from the support frame 8. Subsequently, as the sealing disc 10 continues to move upward, the core rod 15 slides out of the vertical groove 161. When the core rod 15 is inserted into the inclined groove 162, which is inclined, it will pull the core rod 15, causing the core rod 15 to move to the left. It should be noted that when the sealing plate 10 is not in contact with the lifting sleeve 13, the sliding rod 20 slides inside the docking sleeve 17. Because the core rod 15 is embedded in the vertical groove 161, the core rod 15 remains stationary. As the sliding rod 20 slides inside the docking sleeve 17, it will simultaneously drive the docking rod 22 and the movable plate 27 to move synchronously, thus causing the docking rod 22 to slide inside the core rod 15. When the sliding rod 20 slides to its maximum position inside the docking sleeve 17... At this time, the docking rod 22 slides to the leftmost end of the inner cavity of the core rod 15, that is, the docking rod 22 also slides to the maximum position inside the core rod 15. Then, when the core rod 15 slides from the vertical groove 161 to the inclined groove 162, it will drive the core rod 15 to slide to the right. The core rod 15 pulls the docking rod 22, causing the docking rod 22 to drive the movable disk 27 to slide inside the docking sleeve 17 and compress the telescopic spring 26. The end of the movable disk 27 is fixedly connected to the adjusting rack 28, which in turn drives the adjusting rack 28 to slide inside the movable seat 30. The adjusting rack 28 and the adjusting gear 29 are meshed. The adjusting gear 29 is fixed to the movable seat 30. The rotating shaft of the adjusting gear 29 passes through the movable seat 30 and is rotatably connected to the sliding rod 20. When the adjusting rack 28 moves to the right, it will cause the movable seat 30 to swing slightly inside the sliding rod 20. It should be noted that there is a swing gap between the adjusting rack 28 and the movable seat 30, allowing the movable seat 30 to swing normally in a small range. Through the small swing of the movable seat 30, the hydraulic pipes after being positioned by the support block 31 can swing. Through the swing of the hydraulic pipes, the hydraulic pipes with different outer diameters can be better sprayed on the table surface, improving the spraying effect. It should be noted that the wave groove 123 is provided with a wave section, and the lowest point of the wave section is higher than the highest point of the lifting groove 122. By using the lifting groove 122, the ball head rod 11 drives the sealing plate 10 and the lifting sleeve 13 to move upward first, and then drives the lifting sleeve 13 to move up and down slightly. When the lifting sleeve 13 slides up and down slightly, the core rod 15 interacts up and down inside the inclined groove 162, thereby driving the core rod 15, the connecting rod 22, the movable plate 27 and the adjusting rack 28 to move left and right, thereby driving the movable seat 30 to swing back and forth slightly. When the rotating gear 35 meshes with the second rack 38 and finally slides the core rod 15 from the vertical groove 161 to the top of the inclined groove 162, the rotating gear 35 separates from the teeth on the second rack 38. The teeth on both the second rack 38 and the first rack 37 are intermittently designed. After the rotating gear 35 separates from the teeth on the second rack 38, as the rotating gear 35 continues to move with the connecting housing 9, it will mesh with the teeth on the first rack 37, causing the rotating gear 35 to reverse. At this time, the sealing disc 10 will move downwards, and the lifting sleeve 13, affected by the reset effect of the connecting spring 14, will move downwards synchronously. At this time, the core rod 1... 5. The core rod 15 slides down from the highest point to the lowest point of the inclined groove 162. When the core rod 15 slides to the lowest point of the inclined groove 162, the rotating gear 35 will separate from the teeth on the first rack 37. Subsequently, as the connecting housing 9 drives the rotating gear 35 to continue moving forward, the rotating gear 35 will mesh with the teeth on the second rack 38 again, thereby driving the sealing disc 10 and the lifting sleeve 13 to slide upward. Through the subsequent meshing of the teeth on the second rack 38 and the first rack 37 by the rotating gear 35, the core rod 15 can slide up and down inside the inclined groove 162, thereby enabling the adjusting rack 28 to drive the adjusting gear 29 to rotate back and forth, allowing the movable seat 30 to swing left and right.

[0035] Example 4 is an improvement on Example 3, addressing the issue of uneven coating on the surface of hydraulic fittings near the support bracket 8. For details, please refer to [link / reference]. Figures 1 to 10 A docking gear 18 is fixedly connected to the outer wall of the docking sleeve 17 away from the sliding rod 20. A drive rack 19 for driving the docking gear 18 to rotate is installed on the connecting housing 9. The docking sleeve 17 and the lifting sleeve 13 are rotatably connected. A connecting spring 14 is sleeved on the outside of the lifting sleeve 13, and the two ends of the connecting spring 14 are fixedly connected to the lifting sleeve 13 and the connecting housing 9 respectively. When the lifting sleeve 13 drives the core rod 15 to slide inside the inclined groove 162, the lifting sleeve 13 will drive the docking sleeve 17 to rise synchronously. The outer wall of the docking sleeve 17 is fixedly connected to the docking gear 18, which in turn drives the docking sleeve 17 to slide inside the connecting housing 9. When the core rod 15 slides from the vertical groove 161 into the inclined groove 162, the docking gear 18 on the outer wall of the docking sleeve 17 will mesh with the drive rack 19 on the connecting housing 9, thereby driving the docking gear 18 and the docking sleeve 17 to rotate. A docking spring 21 is fixedly installed between the docking sleeve 17 and the sliding rod 20. When docking... When the sleeve 17 rotates, it will synchronously drive the sliding rod 20 to rotate. The sliding rod 20 and the core rod 15 can only slide and cannot rotate relative to each other. Similarly, the core rod 15 and the docking rod 22 can only slide relative to each other and cannot rotate relative to each other. Then, by rotating the docking gear 18, the docking sleeve 17, the sliding rod 20 and the movable seat 30 will be driven to rotate. As the core rod 15 moves up and down inside the inclined groove 162, the docking gear 18, the docking sleeve 17 and the sliding rod 20 will be driven to rotate back and forth. This will drive the hydraulic fittings fixed by the support block 31 to rotate back and forth. The reciprocating rotation of the hydraulic fittings will improve the subsequent spraying and inspection effect of the hydraulic fittings.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A forklift conical double-seal hydraulic pipe fitting testing device, comprising a support base (1), a testing frame (4) is installed on the top outer wall of the support base (1), a testing head (5) is fixedly installed on the inner wall of the testing frame (4), a slide rail (2) is provided in the middle of the outer wall of the support base (1), and a support frame (8) for supporting hydraulic pipe fittings is slidably connected inside the slide rail (2), and a drive screw (7) is threadedly connected inside the support frame (8). Its features are, Also includes: A connecting housing (9) is fixedly installed on one side of the outer wall of the support frame (8). A lifting sleeve (13) is slidably installed inside the connecting housing (9). A docking sleeve (17) is installed on the top side of the lifting sleeve (13), and the lifting sleeve (13) and the docking sleeve (17) are interconnected. A sliding rod (20) is slidably installed inside the docking sleeve (17). A docking spring (21) for elastic reset is provided between the sliding rod (20) and the docking sleeve (17). The inner wall of the end of (20) is provided with a movable seat (30) for inserting into the hydraulic pipe fitting. The movable seat (30) has sliding rods (20) extending out from both ends. The movable seat (30) is used to press the lifting sleeve (13) with the sealing plate (10) after the sliding rod (20) is inserted into the hydraulic pipe fitting, so that the lifting sleeve (13) drives the docking sleeve (17) and the sliding rod (20) to slide upward, thereby allowing the sliding rod (20) to lift the hydraulic pipe fitting, so that the movable seat (30) supports the hydraulic pipe fitting when it is lifted. The sealing disc (10) is slidably installed inside the connecting housing (9). The bottom of the sealing disc (10) is connected to an adjustment component for driving the sealing disc (10) to rise and fall to adjust the position of the hydraulic pipe. The adjustment component includes a ball head rod (11) fixedly connected to the outer wall of the sealing disc (10) away from the lifting sleeve (13). The support base (1) has a limiting groove (12) for limiting the movement of the ball head rod (11). The ball head rod (11) is slidably disposed inside the limiting groove (12). The limiting groove (12) includes a smooth groove (121), a lifting groove (122) and a wave groove (123) connected in sequence, so as to drive the sealing disc (10) to rise and fall by sliding the ball head rod (11) in the limiting groove (12).

2. The forklift conical double-seal hydraulic pipe fitting testing equipment according to claim 1, characterized in that: The movable seat (30) is internally slidably connected to a support block (31) that can move radially along the sliding rod (20). The bottom of the support block (31) is fixedly connected to one end of a return spring (32). The other end of the return spring (32) is fixedly connected to the movable seat (30). When the pressure of the liquid medium inside the movable seat (30) increases, the liquid inside the movable seat (30) will push against the support block (31) inside the movable seat (30) and allow the support block (31) to slide out of the movable seat (30), pushing the support block (31) to slide outward to push against the inner wall of the hydraulic pipe.

3. The forklift conical double-seal hydraulic pipe fitting testing equipment according to claim 2, characterized in that: The docking sleeve (17) has a storage cavity (23) inside, which is filled with a liquid medium. A squeezing part (24) is slidably installed inside the storage cavity (23). The storage cavity (23) is connected to the movable seat (30) through a connecting hose (25). When the sliding rod (20) slides and presses against the squeezing part (24), the liquid in the storage cavity (23) is squeezed through the connecting hose (25) into the movable seat (30), driving the support block (31) to expand outward.

4. The forklift conical double-seal hydraulic pipe fitting testing equipment according to claim 2, characterized in that: The lifting sleeve (13) is slidably connected to a core rod (15). The inner wall of the connecting housing (9) is provided with a sliding groove (16) for restricting the movement of the core rod (15). One end of the core rod (15) is slidably disposed inside the sliding groove (16), and the other end extends into the interior of the sliding rod (20). The sliding groove (16) includes a vertical groove (161) and an inclined groove (162) that are interconnected. When the sealing disc (10) drives the lifting sleeve (13) to slide upward, the core rod (15) will move upward synchronously with the lifting sleeve (13), guiding the core rod (15) to move axially along the sliding groove (16), so that the hydraulic fittings on the movable seat (30) can swing after being positioned by the support block (31).

5. The forklift conical double-seal hydraulic pipe fitting testing equipment according to claim 4, characterized in that: The core rod (15), which slides through the lifting sleeve (13) and extends into the sliding rod (20), is slidably connected to the sliding rod (20). A connecting rod (22) is slidably connected inside the core rod (15). One end of the connecting rod (22) extends out of the core rod (15) and is fixedly connected to the movable disc (27). The movable disc (27) is slidably disposed within the sliding rod (20), and a telescopic spring (26) is provided between the movable disc (27) and the sliding rod (20). The movable disc (27) is located away from the connecting rod. An adjusting rack (28) is fixedly installed on the outer wall of one side of the connecting rod (22). The adjusting rack (28) is meshed with the adjusting gear (29). The adjusting gear (29) is fixedly connected to the movable seat (30) and rotatably connected to the sliding rod (20). When the core rod (15) moves axially, the movable disc (27) is moved through the connecting rod (22), which in turn drives the adjusting rack (28) to rotate the adjusting gear (29) and the movable seat (30) while driving the hydraulic pipe to swing.

6. The forklift conical double-seal hydraulic pipe fitting testing equipment according to claim 5, characterized in that: A docking gear (18) is fixedly connected to the outer wall of the docking sleeve (17) away from the sliding rod (20). A drive rack (19) for driving the docking gear (18) to rotate is installed on the connecting housing (9). The docking sleeve (17) and the lifting sleeve (13) are rotatably connected. A connecting spring (14) is sleeved on the outside of the lifting sleeve (13), and the two ends of the connecting spring (14) are fixedly connected to the lifting sleeve (13) and the connecting housing (9) respectively.

7. The forklift conical double-seal hydraulic pipe fitting testing equipment according to claim 1, characterized in that: The drive screw (7) is movably connected to the slide rail (2), and a drive motor (6) is installed at one end of the drive screw (7). The drive motor (6) is fixedly connected to the slide rail (2). A spraying device (3) is provided on the side of the detection frame (4), and the spraying device (3) is fixedly connected to the support base (1).

Images