A lock head installation test fixture

Abstract

The utility model provides a kind of lock head installation test tool, belong to lock head detection equipment technical field, technical scheme is, a kind of lock head installation test tool, including fixed link, the one end of fixed link is fixed with fixed block, the other end of fixed link is equipped with the movable block that can slide along fixed link, fixed link outside is equipped with the adjusting rod of same height and each other parallel, the one end of adjusting rod is fixed with adjusting block one near fixed block, the one end of adjusting rod is equipped with the adjusting block two that can slide along adjusting rod away from fixed block, it is equipped with guide rod one between fixed block and adjusting block one, guide rod one is perpendicular to fixed link, one end of guide rod one is fixedly connected with fixed block, the other end of guide rod one passes through adjusting block one and is slidably connected with adjusting block one.The utility model has the beneficial effect that, this tool can realize the tight clamping to lock sleeve, effectively avoid that lock sleeve produces slight rotation with lock head, to guarantee the accurate reliable of test result.

Description

Technical Field

[0001] This utility model belongs to the technical field of lock testing equipment, specifically relating to a lock installation and testing fixture. Background Technology

[0002] As a core attachment for port gantry cranes and rubber-tired gantry cranes, the locking mechanism of the spreader is a crucial component connecting the spreader and the container. After replacing the locking mechanism, it is essential to test whether its opening and closing rotation is complete. If the locking mechanism rotates incorrectly or does not return completely, it may scrape against the container's locking hole when the spreader hooks up. This could cause minor wear and tear on the locking mechanism and the locking hole, or even lead to a container falling from a height, threatening not only the safety of equipment and personnel but also disrupting port operations.

[0003] As shown in the patent with publication number CN223102477U, the existing tool includes two parallel adjusting rods. One end of the adjusting rod is provided with a positioning block 1, and the other end is provided with a positioning block 2. Positioning block 1 is a fixed structure, and connecting block 1 is fixed to the adjusting rod. Connecting rod 1 is welded between connecting block 1 or the L-shaped positioning plate 1 at its upper end. Positioning block 2 is a movable structure, and connecting block 2 is slidably sleeved on the adjusting rod. Connecting rod 2 is also welded between connecting block 2 or the L-shaped positioning plate 2 at its upper end. The end of the adjusting rod passes through connecting block 2 and is connected to a fixing nut. Tightening the nut can drive positioning block 2 to slide along the rod. The main beam of the lifting device is clamped by the cooperation of positioning block 1 and positioning block 2.

[0004] However, both the connecting rod one of positioning block one and the connecting rod two of positioning block two are welded and fixed, directly locking the distance between the two adjusting rods and making it impossible to adjust according to the size of the lock sleeve. This makes it difficult for the tool to clamp the lock sleeve tightly. When testing the rotation of the lock head, the lock sleeve, which should serve as a reference, will rotate slightly with the lock head. Once the reference shifts, the operator cannot determine whether the lock head has rotated to the predetermined position based on the position of the lock sleeve, resulting in inaccurate test results and making it difficult to guarantee the installation accuracy of the lock head. Utility Model Content

[0005] This invention addresses the problem that existing tools are unable to ensure a tight clamping of the lock sleeve, and the lock sleeve is prone to slight rotation with the lock head, leading to inaccurate test results. It provides a lock head installation and testing fixture that can achieve a tight clamping of the lock sleeve, prevent the lock sleeve from rotating slightly with the lock head, and ensure accurate and reliable test results.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows: a lock head installation and testing fixture, including a fixed rod, a fixed block fixed to one end of the fixed rod, a positioning plate 1 on the top of the fixed block, a movable block that can slide along the fixed rod passing through the other end of the fixed rod, a positioning plate 2 on the top of the movable block, an adjusting rod of the same height and parallel to each other on the outside of the fixed rod, an adjusting block 1 fixed to the end of the adjusting rod near the fixed block, an adjusting block 2 that can slide along the adjusting rod passing through the end of the adjusting rod away from the fixed block, a positioning plate 3 on the top of the adjusting block 1, a positioning plate 4 on the top of the adjusting block 2, a guide rod 1 between the fixed block and the adjusting block 1, the guide rod 1 being perpendicular to the fixed rod, one end of the guide rod 1 being fixedly connected to the fixed block, and the other end of the guide rod 1 passing through the adjusting block 1 and slidingly engaging with the adjusting block 1.

[0007] In this technical solution, a fixing block is fixed to one end of the fixing rod, and a positioning plate 1 is provided on the top of the fixing block; a movable block that can slide along the fixing rod passes through the other end of the fixing rod, and a positioning plate 2 is provided on the top of the movable block. An adjusting rod of the same height and parallel to the fixing rod is provided on the outside of the fixing rod. An adjusting block 1 is fixed to the end of the adjusting rod near the fixing block, and an adjusting block 2 that can slide along the adjusting rod passes through the end away from the fixing block. A positioning plate 3 is provided on the top of the adjusting block 1, and a positioning plate 4 is provided on the top of the adjusting block 2. Simultaneously, a guide rod 1 is provided between the fixing block and the adjusting block 1. This guide rod 1 is perpendicular to the fixing rod, with one end fixedly connected to the fixing block, and the other end passing through the adjusting block 1 and forming a sliding fit with it. During operation, the movable block slides along the fixing rod, and the tooling can be fixed to the main beam of the lifting device through the cooperation of the positioning plate 1 and the positioning plate 2; the adjusting block 1 drives the adjusting rod to slide along the guide rod 1, causing the adjusting rod to move closer to the fixing rod, thereby achieving clamping and fixing of the locking sleeve through the cooperation of the fixing rod and the adjusting rod. Therefore, this fixture can achieve a tight clamping of the lock sleeve, effectively preventing the lock sleeve from rotating slightly with the lock head, thus ensuring the accuracy and reliability of the test results.

[0008] Furthermore, a second guide rod is provided between the moving block and the second adjusting block. The second guide rod is parallel to the first guide rod, one end of which is fixedly connected to the moving block, and the other end of which passes through the second adjusting block and slides in cooperation with it. The second guide rod, parallel to the first guide rod, forms a double-guide structure, providing stable sliding support for the second adjusting block and effectively limiting its offset or wobbling during sliding, ensuring it always moves in the set direction. On the other hand, since the second adjusting block is connected to the adjusting rod, its smooth movement directly drives the adjusting rod to maintain stable movement, preventing tilting or misalignment during movement. This ensures the accuracy of the position when the adjusting rod and the fixed rod clamp the locking sleeve, guaranteeing stable installation and testing of the lock head.

[0009] Furthermore, the guide rod 1 has an external thread on the outer circumference of its protruding end through the adjusting block 1, and is threadedly connected to a locking nut 3. A clamping sleeve 3 is provided between the locking nut 3 and the adjusting block 1, and the clamping sleeve 3 is fitted over the guide rod 1. The guide rod 2 has an external thread on the outer circumference of its protruding end through the adjusting block 2, and is threadedly connected to a locking nut 4. A clamping sleeve 4 is provided between the locking nut 4 and the adjusting block 2, and the clamping sleeve 4 is fitted over the guide rod 2. The guide rod 1 has an external thread on the outer circumference of its protruding end through the adjusting block 1 and is threadedly connected to the locking nut 3. The guide rod 2 has an external thread on the outer circumference of its protruding end through the adjusting block 2 and is threadedly connected to the locking nut 4. This structure allows the adjusting blocks 1 and 2 to be reliably fixed by the locking nuts 3 and 4 respectively after they have slid to the desired position. The clamping sleeve three between the locking nut three and the adjusting block one is fitted outside the guide rod one, and the clamping sleeve four between the locking nut four and the adjusting block two is fitted outside the guide rod two. This ensures that when the adjusting block one slides, it only contacts the clamping sleeve three, and when the adjusting block two slides, it only contacts the clamping sleeve four. This prevents the adjusting block from constantly contacting the external thread of the guide rod one, and the adjusting block two from directly contacting the external thread of the guide rod two. If the thread structure of the external thread comes into contact with the adjusting block one or the adjusting block two, it can easily cause obstruction or jamming during sliding. The smooth surfaces of the clamping sleeves three and four ensure smooth sliding of the adjusting blocks one and two, reducing frictional resistance. At the same time, the clamping sleeves three and four can also distribute the pressure of the locking nut three on the adjusting block one and the locking nut four on the adjusting block two, respectively, preventing the adjusting blocks one and two from deforming due to excessive local force. This ensures the stability and positional accuracy of the adjusting blocks one and two during sliding, thereby ensuring the reliable operation of the entire tooling.

[0010] Furthermore, both guide rod one and guide rod two have displacement scale lines on their outer walls. The outer wall of guide rod one has displacement scale lines, which can visually display the distance the adjusting block one moves along guide rod one; the outer wall of guide rod two has displacement scale lines, which can visually display the distance the adjusting block two moves along guide rod two. By observing these two displacement scale lines, it is possible to clearly determine whether the movement of adjusting block one and adjusting block two matches, thereby ensuring that the movement of adjusting block one driving the adjusting rod remains synchronized with the movement of adjusting block two. This ensures that the adjusting rod remains parallel to the fixed rod throughout the entire movement process, avoiding tilting of the adjusting rod due to inconsistent movement distances, and guaranteeing the stability of the clamping locking sleeve between the fixed rod and the adjusting rod, providing a precise structural foundation for subsequent testing.

[0011] Furthermore, the fixed rod has an external thread on the outer circumferential surface of its protruding end through the movable block, and is threadedly connected to a locking nut. A clamping sleeve is provided between the locking nut and the movable block, and the clamping sleeve is fitted over the fixed rod. The adjusting rod has an external thread on the outer circumferential surface of its protruding end through the adjusting block, and is threadedly connected to a locking nut. A clamping sleeve is provided between the locking nut and the adjusting block, and the clamping sleeve is fitted over the adjusting rod. The fixed rod has an external thread on its outer circumferential surface of its protruding end through the movable block and is threadedly connected to the locking nut, which can fix the movable block after it slides to the target position. The adjusting rod has an external thread on its outer circumferential surface of its protruding end through the adjusting block and is threadedly connected to the locking nut, which can fix the adjusting block after it slides to the target position. A clamping sleeve is fitted outside the fixed rod between the locking nut one and the moving block, ensuring that the moving block only contacts the clamping sleeve one when sliding, avoiding direct contact with the external thread of the fixed rod. Similarly, a clamping sleeve two is fitted outside the adjusting rod between the locking nut two and the adjusting block two, ensuring that the adjusting block two only contacts the clamping sleeve two when sliding, avoiding direct contact with the external thread of the adjusting rod. If the external thread structure were to contact the moving block or adjusting block two, it could easily cause obstruction or jamming during sliding. The smooth surfaces of clamping sleeves one and two ensure smooth sliding of the moving block and adjusting block two, reducing frictional resistance. Simultaneously, clamping sleeves one and two can also distribute the pressure of the locking nut one on the moving block and the locking nut two on the adjusting block two, preventing deformation of the moving block and adjusting block two due to excessive localized force. This ensures the stability and positional accuracy of the moving block and adjusting block two during sliding, thereby guaranteeing the reliable operation of the tooling.

[0012] Furthermore, positioning plates one, two, three, and four are all L-shaped. The openings of positioning plates one and two are opposite each other, as are the openings of positioning plates three and four. The L-shaped structure provides two vertical sides, offering a stable support surface and preventing uneven force distribution on one side during positioning. Positioning plates one and two have opposite openings; one is fixed to the top of the fixed block, and the other to the top of the moving block. Their opposite openings form a locking structure from both sides of the main beam of the lifting device. When the moving block slides along the fixed rod to adjust its position, positioning plates one and two fit tightly against the edge of the main beam, firmly fixing the fixture to the main beam and preventing lateral displacement during testing. Positioning plate three and positioning plate four are set with their openings facing each other. Positioning plate three is fixed to the top of adjusting block one, and positioning plate four is fixed to the top of adjusting block two. When adjusting block one moves the adjusting rod, positioning plate three and positioning plate four can adjust their positions synchronously with adjusting block one and adjusting block two. The openings of the two are facing each other, which can form a clamping and positioning from both sides of the lock sleeve. The L-shaped side can fit against the outer wall of the lock sleeve, ensuring that the lock sleeve is in a centered and stable state in the tooling, avoiding the lock sleeve from shifting during clamping or testing. This provides a precise positioning basis for the subsequent testing of the lock head by the testing rod, ensuring the smooth progress of the testing operation and the accuracy of the test results.

[0013] Furthermore, a sliding sleeve is fitted onto the adjusting rod, and a connecting rod is located below the sliding sleeve. The upper end of the connecting rod is fixedly connected to the sliding sleeve, and the lower end of the connecting rod is rotatably connected to a test rod. The sliding sleeve on the adjusting rod allows the connecting rod and the test rod connected to it to flexibly adjust their horizontal positions along the direction of the adjusting rod, thus adapting to the different horizontal installation positions of different lock heads and ensuring that the test rod can be accurately aligned with the lock head to be tested. The fixed connection between the sliding sleeve and the upper end of the connecting rod ensures that the connecting rod and the test rod move synchronously and stably when the sliding sleeve moves, preventing relative loosening that could cause the test rod to shift position. The rotatable connection between the lower end of the connecting rod and the test rod allows the test rod to flexibly adjust its angle according to the testing requirements of the lock head. For example, for different orientations of the keyhole, the test rod can rotate to a suitable angle to smoothly complete insertion, rotation, and other testing actions without adjusting the position of the entire fixture. This improves the flexibility of the testing operation and expands the fixture's adaptability to different lock head specifications, ensuring efficient progress in lock head installation and testing.

[0014] Furthermore, the connecting rod is Z-shaped, with both its upper and lower sections arranged vertically. This Z-shape and vertical arrangement of the connecting rod ensures that the middle section is laterally offset relative to the upper and lower sections. In the fixture, the locking sleeve is clamped between the fixing rod and the adjusting rod. The upper end of the connecting rod connects to the sliding sleeve on the adjusting rod, and the lower end connects to the test rod corresponding to the lock head. This lateral offset in the middle section precisely avoids the space where the locking sleeve is located, preventing the connecting rod from interfering with the locking sleeve when it moves with the sliding sleeve or when the test rod is in operation. Simultaneously, the vertical orientation of the upper and lower sections ensures a stable vertical connection between the sliding sleeve and the test rod, keeping the test rod always in a vertical position corresponding to the lock head. This prevents offset due to structural avoidance, ensuring the test rod can accurately align with the lock head to complete the test. This achieves effective avoidance of the locking sleeve without affecting the normal operation of the testing function.

[0015] Furthermore, a baseline is provided at the top of the test rod, running along its length. An angle disc is fitted and fixed to the lower end of the connecting rod, and the outer circumference of the angle disc has evenly distributed angle scale lines. The baseline at the top of the test rod, running along its length, serves as a clear visual reference mark, facilitating quick alignment with the scale on the angle disc during testing. The angle disc, with its evenly distributed angle scale lines on its outer circumference, corresponds synchronously to different scales on the angle disc as the test rod rotates around the lower end of the connecting rod. Operators can visually read the rotation angle of the test rod through the precise alignment of the baseline and scale lines. For example, when testing the rotational flexibility of the lock head or verifying the lock head's final rotation angle, operators can accurately determine whether the lock head has reached the specified rotation angle requirement, avoiding errors caused by estimations based on experience.

[0016] Furthermore, the height of the fixing rod is adapted to the height of the lock sleeve, and the height of the test rod is adapted to the height of the lock head. The matching height of the fixing rod with the lock sleeve ensures that when the fixing rod and adjusting rod work together to clamp the lock sleeve, the force exerted on the lock sleeve is evenly distributed along the height direction. This prevents insufficient clamping force or tilting at one end of the lock sleeve due to improper fixing rod height, ensuring the lock sleeve is stably clamped in the set position and providing a reliable fixed foundation for subsequent testing. The matching height of the test rod with the lock head allows the test rod to be accurately aligned with the test part of the lock head without additional vertical adjustment, such as smoothly inserting into the keyhole or fitting against the rotating parts of the lock head. This avoids height deviations that could prevent the test rod from properly aligning with the lock head and affect the testing operation.

[0017] As can be seen from the above embodiments, the beneficial effects of this utility model are as follows: 1. Stable and reliable fixing and clamping: The tooling is fixed by the cooperation of positioning plate one and positioning plate two, and the locking sleeve is clamped by the cooperation of fixing rod and adjusting rod. At the same time, the locking structure can effectively prevent tooling displacement and slight rotation of the locking sleeve, providing a stable foundation for testing.

[0018] 2. Smooth and precise component movement: The dual guide rods, in conjunction with the displacement scale, ensure that the adjustment block moves synchronously and slides along the set direction; the clamping sleeve design prevents the component from touching the external thread, reducing sliding jamming and ensuring adjustment accuracy.

[0019] 3. Flexible and precise testing operation: The sliding sleeve drives the test rod to adjust its horizontal position, and the test rod can rotate to adapt to different angles. The rotation angle can be read with the reference line and angle dial. At the same time, the fixed rod and the test rod are respectively adapted to the height of the lock sleeve and the lock head, which can not only accurately test, but also adapt to different specifications of lock heads. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model; Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle; Figure 3 This is an installation diagram illustrating a specific embodiment of the present invention.

[0022] In the diagram: 1. Fixed rod; 11. Fixed block; 12. Positioning plate one; 13. Moving block; 14. Positioning plate two; 15. Locking nut one; 16. Pressing sleeve one; 2. Adjusting rod; 21. Adjusting block one; 22. Adjusting block two; 23. Positioning plate three; 24. Positioning plate four; 25. Locking nut two; 26. Pressing sleeve two; 3. Guide rod one; 31. Locking nut three; 32. Pressing sleeve three; 4. Guide rod two; 41. Locking nut four; 42. Pressing sleeve four; 5. Sliding sleeve; 51. Connecting rod; 52. Angle disc; 53. Angle scale line; 6. Test rod; 61. Baseline; 7. Main beam of the lifting device; 71. Locking sleeve; 72. Lock head; 8. Displacement scale line. Detailed Implementation

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0024] A lock installation and testing fixture, such as Figure 1 As shown, the device includes a fixed rod 1, the height of which is adapted to the height of the locking sleeve 71 to ensure uniform force when clamping the locking sleeve 71 with the adjusting rod 2. One end of the fixed rod 1 is fixedly connected to a fixed block 11, and a positioning plate 12 is fixedly provided on the top of the fixed block 11. The other end of the fixed rod 1 is axially connected to a moving block 13, which forms a sliding fit with the fixed rod 1 and can slide flexibly along the length direction of the fixed rod 1. A positioning plate 24 is fixedly provided on the top of the moving block 1. An adjusting rod 2 is provided on the outside of the fixed rod 1. The adjusting rod 2 is at the same height as the fixed rod 1 and the two are parallel to each other. The end of the adjusting rod 2 near the fixed block 11 is fixedly connected to an adjusting block 21, and a positioning plate 33 is fixedly provided on the top of the adjusting block 21. The end of the adjusting rod 2 away from the fixed block 11 is axially connected to an adjusting block 22, which forms a sliding fit with the adjusting rod 2 and can slide along the length direction of the adjusting rod 2. A positioning plate 44 is fixedly provided on the top of the adjusting block 22. By cooperating with the fixing rod 1 and the adjusting rod 2, the locking sleeve 71 can be stably clamped and fixed.

[0025] Positioning plate 12, positioning plate 24, positioning plate 33, and positioning plate 44 are all L-shaped. The openings of positioning plate 12 and positioning plate 24 are opposite to each other, and they can be engaged from both sides of the main beam 7 of the lifting device as the moving block 13 slides. Similarly, the openings of positioning plate 33 and positioning plate 44 are opposite to each other, and they can be engaged from both sides of the main beam 7 of the lifting device as the adjusting block 22 slides, so as to realize the positioning and fixing of the tooling on the main beam 7 of the lifting device.

[0026] In this specific embodiment, a guide rod 3 is provided between the fixed block 11 and the adjusting block 21. The axis of the guide rod 3 is perpendicular to the axis of the fixed rod 1. One end of the guide rod 3 is fixedly connected to the fixed block 11, and the other end passes through the adjusting block 21 horizontally, forming a sliding fit with the adjusting block 21. The adjusting block 21 can slide smoothly along the guide rod 3, thereby driving the adjusting rod 2 to move synchronously in the set direction. A guide rod 4 is provided between the moving block 13 and the adjusting block 22. The axis of the guide rod 4 is parallel to the axis of the guide rod 3. One end of the guide rod 4 is fixedly connected to the moving block 13, and the other end passes through the adjusting block 22 horizontally, forming a sliding fit with the adjusting block 22. The adjusting block 22 can slide along the guide rod 4, ensuring that the adjusting rod 2 remains parallel to the fixed rod 1 during movement, and preventing the adjusting rod 2 from tilting and affecting the clamping effect of the locking sleeve 71.

[0027] The guide rod 3 has an external thread on the outer circumference of its protruding end through the adjusting block 21. A locking nut 31 is threaded onto this external thread. A clamping sleeve 32 is provided between the locking nut 31 and the adjusting block 21. The clamping sleeve 32 is coaxially sleeved on the outside of the guide rod 3. One end of the clamping sleeve 32 abuts against the adjusting block 21, and the other end abuts against the locking nut 31. This avoids the adjusting block 21 from directly contacting the external thread of the guide rod 3, which could cause sliding and jamming. It also allows the adjusting block 21 to be fixed in the target position of the guide rod 3 by tightening the locking nut 31. The guide rod 4 also has an external thread on the outer circumference of its protruding end through the adjusting block 22. A locking nut 41 is threaded onto this external thread. A clamping sleeve 42 is provided between the locking nut 41 and the adjusting block 22. The clamping sleeve 42 is coaxially sleeved on the outside of the guide rod 4. Its assembly method and working principle are the same as those of the clamping sleeve 32. In addition, displacement scale lines 8 are provided on the outer walls of guide rod 1 3 and guide rod 2 4, which can intuitively display the moving distance of adjustment block 1 21 along guide rod 1 3 and adjustment block 2 22 along guide rod 2 4, so that the operator can accurately control the amount of movement of the two and ensure the parallel accuracy of adjustment rod 2 and fixed rod 1.

[0028] The fixed rod 1 has an external thread on the outer circumference of its protruding end through the movable block 13. A locking nut 15 is threaded onto this external thread. A clamping sleeve 16 is provided between the locking nut 15 and the movable block 13. The clamping sleeve 16 is coaxially sleeved on the outside of the fixed rod 1. After the movable block 13 slides to the target position, tightening the locking nut 15 can fix the movable block 13 through the clamping sleeve 16, while preventing the movable block 13 from directly contacting the external thread of the fixed rod 1. The adjusting rod 2 has an external thread on the outer circumference of its protruding end through the adjusting block 22. A locking nut 25 is threaded onto this external thread. A clamping sleeve 26 is provided between the locking nut 25 and the adjusting block 22. The clamping sleeve 26 is coaxially sleeved on the outside of the adjusting rod 2. Its working principle is the same as that of the clamping sleeve 16, realizing the stable fixation and interference-free sliding of the adjusting block 22 on the adjusting rod 2.

[0029] like Figure 2 As shown, a sliding sleeve 5 is fitted onto the adjusting rod 2, forming a sliding fit with the adjusting rod 2. The sliding sleeve 5 can move freely along the length of the adjusting rod 2 to adjust the test position. A connecting rod 51 is located below the sliding sleeve 5. The upper end of the connecting rod 51 is fixedly connected to the sliding sleeve 5 and moves synchronously with the sliding sleeve 5. The lower end of the connecting rod 51 is rotatably connected to the test rod 6, allowing the test rod 6 to rotate flexibly around the lower end of the connecting rod 51 to accommodate different test angles of the lock head 72. The connecting rod 51 is Z-shaped, with both the upper and lower sections arranged vertically, while the middle section is relatively laterally offset. This avoids the spatial area where the lock head 71 is located, preventing contact interference between the connecting rod 51 or the test rod 6 and the lock head 71. The height of the test rod 6 is adapted to the height of the lock head 72, so that it can be accurately connected to the test part of the lock head 72. The top of the test rod 6 is provided with a reference line 61, which is set along the length of the test rod 6. The lower end of the connecting rod 51 is fitted with and fixed with an angle plate 52. The outer circumference of the angle plate 52 is provided with evenly distributed angle scale lines 53. By the correspondence between the reference line 61 and the angle scale lines 53, the rotation angle of the test rod 6 can be accurately read, ensuring the accuracy of the lock head 72 test.

[0030] Work process: such as Figure 3 As shown, when using it, first place the tooling at the bottom of the main beam 7 of the lifting device, so that positioning plate 12, positioning plate 24, positioning plate 33, and positioning plate 424 are all gently attached to the main beam 7 of the lifting device, only for preliminary alignment, without forming a tight lock, so that the moving block 13 and adjusting block 22 can slide flexibly along the fixed rod 1 and adjusting rod 2, and the adjusting block 121 and adjusting block 22 can slide flexibly along the guide rod 13 and guide rod 24.

[0031] Subsequently, observe the displacement scale line 8 on the outer wall of guide rod 1 3 and guide rod 2 4. Slide adjusting block 1 21 along guide rod 1 3 and adjusting block 2 22 along guide rod 2 4 to move adjusting rod 2 towards fixed rod 1 until fixed rod 1 and adjusting rod 2 clamp the locking sleeve 71 located between them. During this period, confirm the matching of the movement of adjusting block 1 21 and adjusting block 2 22 through the displacement scale line 8 to ensure that adjusting rod 2 and fixed rod 1 are always parallel. Then tighten locking nut 31 and locking nut 41. Through clamping sleeve 32 and clamping sleeve 42, fix adjusting block 1 21 and adjusting block 2 22 on guide rod 1 3 and guide rod 2 4 respectively to complete the clamping and fixing of locking sleeve 71.

[0032] Next, slide the moving block 13 along the fixed rod 1 to move the positioning plate 14 closer to one side of the main beam 7 of the lifting device. At the same time, slide the adjusting block 22 along the adjusting rod 2 to move the positioning plate 24 closer to the same side of the main beam 7 of the lifting device. This continues until the positioning plate 12 and the positioning plate 24, and the positioning plate 3 and the positioning plate 4 24, are tightly engaged from both sides of the main beam 7 of the lifting device. Then, tighten the locking nut 15 and the locking nut 25. By tightening the clamping sleeve 16 and the clamping sleeve 26, the moving block 13 and the adjusting block 22 are fixed in their corresponding positions, thus achieving a stable positioning of the tooling on the main beam 7 of the lifting device.

[0033] Finally, the lock head 72 test is performed: slide the sliding sleeve 5 along the adjusting rod 2 to move the connecting rod 51 and the test rod 6 towards the lock head 72. Since the height of the test rod 6 is adapted to the height of the lock head 72, the test rod 6 can be accurately aligned with the lock head 72. Rotate the test rod 6 to make it fit against the surface of the lock head 72, and then rotate the lock head 72. The test rod 6 rotates synchronously with the lock head 72. At this time, observe the baseline 61 at the top of the test rod 6 and the angle scale line 53 on the outer periphery of the angle plate 52 at the lower end of the connecting rod 51. Through the value of the angle scale line 53 corresponding to the baseline 61, the rotation angle of the lock head 72 can be accurately read, and the test of the rotation angle of the lock head 72 is completed.

[0034] As can be seen from the above embodiments, the beneficial effects of this utility model are as follows: 1. Stable and reliable fixing and clamping: The tooling is fixed by the cooperation of positioning plate one and positioning plate two, and the locking sleeve is clamped by the cooperation of fixing rod and adjusting rod. At the same time, the locking structure can effectively prevent tooling displacement and slight rotation of the locking sleeve, providing a stable foundation for testing.

[0035] 2. Smooth and precise component movement: The dual guide rods, in conjunction with the displacement scale, ensure that the adjustment block moves synchronously and slides along the set direction; the clamping sleeve design prevents the component from touching the external thread, reducing sliding jamming and ensuring adjustment accuracy.

[0036] 3. Flexible and precise testing operation: The sliding sleeve drives the test rod to adjust its horizontal position, and the test rod can rotate to adapt to different angles. The rotation angle can be read with the reference line and angle dial. At the same time, the fixed rod and the test rod are respectively adapted to the height of the lock sleeve and the lock head, which can not only accurately test, but also adapt to different specifications of lock heads.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lock head installation and testing fixture, comprising a fixing rod (1), characterized in that, A fixing block (11) is fixed to one end of a fixing rod (1). A positioning plate (12) is provided on the top of the fixing block (11). A movable block (13) that can slide along the fixing rod (1) is provided at the other end of the fixing rod (1). A positioning plate (14) is provided on the top of the movable block (13). An adjusting rod (2) of the same height and parallel to each other is provided on the outside of the fixing rod (1). An adjusting block (21) is fixed to the end of the adjusting rod (2) near the fixing block (11). The end of the adjusting rod (2) away from the fixing block (11) is provided through... An adjusting block two (22) is provided that can slide along the adjusting rod (2). A positioning plate three (23) is provided on the top of the adjusting block one (21), and a positioning plate four (24) is provided on the top of the adjusting block two (22). A guide rod one (3) is provided between the fixed block (11) and the adjusting block one (21). The guide rod one (3) is perpendicular to the fixed rod (1). One end of the guide rod one (3) is fixedly connected to the fixed block (11), and the other end of the guide rod one (3) passes through the adjusting block one (21) and slides with the adjusting block one (21).

2. The lock head installation and testing fixture according to claim 1, characterized in that, A guide rod 2 (4) is provided between the moving block (13) and the adjusting block 2 (22). The guide rod 2 (4) is parallel to the guide rod 1 (3). One end of the guide rod 2 (4) is fixedly connected to the moving block (13), and the other end of the guide rod 2 (4) passes through the adjusting block 2 (22) and slides with the adjusting block 2 (22).

3. The lock head installation and testing fixture according to claim 2, characterized in that, The guide rod 1 (3) has an external thread on the outer circumference of the protruding end of the adjusting block 1 (21), and is threaded to a locking nut 3 (31). A clamping sleeve 3 (32) is provided between the locking nut 3 (31) and the adjusting block 1 (21), and the clamping sleeve 3 (32) is sleeved on the outside of the guide rod 1 (3). The guide rod 2 (4) has an external thread on the outer circumference of the protruding end of the adjusting block 2 (22), and is threaded to a locking nut 4 (41). A clamping sleeve 4 (42) is provided between the locking nut 4 (41) and the adjusting block 2 (22), and the clamping sleeve 4 (42) is sleeved on the outside of the guide rod 2 (4).

4. The lock head installation and testing fixture according to claim 2, characterized in that, Displacement scale lines (8) are provided on the outer walls of guide rod one (3) and guide rod two (4).

5. The lock head installation and testing fixture according to claim 1, characterized in that, The fixed rod (1) has an external thread on the outer circumference of the protruding end of the moving block (13), and is threaded to a locking nut (15). A clamping sleeve (16) is provided between the locking nut (15) and the moving block (13), and the clamping sleeve (16) is sleeved on the outside of the fixed rod (1). The adjusting rod (2) has an external thread on the outer circumference of the protruding end of the adjusting block (22), and is threaded to a locking nut (25). A clamping sleeve (26) is provided between the locking nut (25) and the adjusting block (22), and the clamping sleeve (26) is sleeved on the outside of the adjusting rod (2).

6. The lock head installation and testing fixture according to claim 1, characterized in that, Positioning plate one (12), positioning plate two (14), positioning plate three (23) and positioning plate four (24) are all L-shaped. The openings of positioning plate one (12) and positioning plate two (14) are set opposite to each other, and the openings of positioning plate three (23) and positioning plate four (24) are set opposite to each other.

7. The lock head installation and testing fixture according to claim 1, characterized in that, A sliding sleeve (5) that can slide along the adjusting rod (2) is fitted on the adjusting rod (2). A connecting rod (51) is provided below the sliding sleeve (5). The upper end of the connecting rod (51) is fixedly connected to the sliding sleeve (5), and the lower end of the connecting rod (51) is rotatably connected to the test rod (6).

8. The lock head installation and testing fixture according to claim 7, characterized in that, The connecting rod (51) is Z-shaped, and both the upper and lower sections of the connecting rod (51) are set in the vertical direction.

9. The lock head installation and testing fixture according to claim 8, characterized in that, The top of the test rod (6) is provided with a reference line (61), which is set along the length of the test rod (6). An angle disk (52) is sleeved and fixed at the lower end of the connecting rod (51), and the outer circumference of the angle disk (52) is provided with evenly distributed angle scale lines (53).

10. The lock head installation and testing fixture according to claim 7, characterized in that, The height of the fixing rod (1) is matched with the height of the lock sleeve (71), and the height of the test rod (6) is matched with the height of the lock head (72).

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