Servo hook plate structure of two-stage telescopic two-way linear rail

Abstract

According to the two-stage telescopic two-way linear rail servo hook plate structure, a first-stage driving mechanism drives a second cantilever assembly to stretch out of a first cantilever assembly in the length direction, and meanwhile a transmission connecting mechanism drives a second-stage driving mechanism to synchronously drive a third cantilever assembly to synchronously and movably stretch out of the second cantilever assembly; the two-stage stretching and retracting synchronous driving is adopted, and the two-stage stretching and retracting synchronous driving mechanism can stretch and retract to a farther stroke in a limited length space. And the second cantilever assembly is supported and guided through the first cantilever assembly, and the third cantilever assembly is supported and guided through the second cantilever assembly, so that good guidance quality and supporting performance are achieved in the stretching-out state and the retracting state, and different from traditional one-way guiding and supporting, large-size and large-weight products are transferred more safely, efficiently and stably.

Description

Technical Field

[0001] This application relates to the field of server manufacturing and assembly technology, and in particular to a two-stage telescopic bidirectional linear guide servo hook plate structure. Background Technology

[0002] When assembling and loading server chassis, the chassis itself is quite large, resulting in large carrier boards, typically 1200mm long x 550mm wide. These boards are also heavy, with the carrier board and server weighing 80-150kg. However, the internal length of the lifting platform is limited. Therefore, when loading server carrier boards, they need to be transferred from the trolley to the lifting platform's rollers. This heavy load and long stroke necessitates a material-hooking mechanism designed on the lifting platform (space-saving and high-load capacity). Conventional hooking mechanisms are too long; the extended cantilever sags, resulting in poor guidance, affecting functionality, and potentially causing material to slip and fail to be hooked. They also occupy too much space.

[0003] Currently, conventional telescopic hooking mechanisms for lifting platforms in the industry often suffer from risks such as sagging, inaccurate hooking position, and easy slippage of hooked materials due to their long stroke, large load, and large space occupation. Summary of the Invention

[0004] In order to improve the shortcomings of the existing telescopic hooking mechanism of the lifting platform, which has long stroke, large load, large space occupation, easy sag of the cantilever, inaccurate hooking position, and easy slippage of the hook, this application provides a two-stage telescopic bidirectional linear guide servo hook plate structure.

[0005] The technical solution for the two-stage telescopic bidirectional linear guide servo hook plate structure provided in this application is as follows: A two-stage telescopic bidirectional linear guide servo hook plate structure includes: a first cantilever assembly; a second cantilever assembly movably mounted on the first cantilever assembly along its length; a primary drive mechanism disposed between the first and second cantilever assemblies for driving the second cantilever assembly; a third cantilever assembly movably mounted on the second cantilever assembly along its length; a secondary drive mechanism disposed between the second and third cantilever assemblies for driving the third cantilever assembly; a transmission connection mechanism for connecting the primary and secondary drive mechanisms; and a hooking component mounted on the third cantilever assembly. When the primary drive mechanism drives the second cantilever assembly to extend out of the first cantilever assembly, the transmission connection mechanism drives the secondary drive mechanism to synchronously extend the third cantilever assembly out of the second cantilever assembly, thereby enabling the hooking component to extend and hook material.

[0006] By adopting the above technical solution, the second cantilever assembly is driven by a primary drive mechanism to extend the first cantilever assembly along its length. Simultaneously, the secondary drive mechanism, driven by a transmission connection mechanism, synchronously drives the third cantilever assembly to extend the second cantilever assembly, thus enabling the hook to extend and hook the material. This two-stage telescopic synchronous drive allows for a longer travel distance within a limited space. Furthermore, the first cantilever assembly supports and guides the second cantilever assembly, and the second cantilever assembly supports and guides the third cantilever assembly, ensuring excellent guidance and support in both extended and retracted states. This differs from traditional unidirectional guidance and support, making the transfer of large and heavy products safer, more efficient, and more stable.

[0007] Preferably, the first cantilever assembly includes a first mounting plate and a first slide rail disposed on the first mounting plate along its length, and the second cantilever assembly includes a second mounting plate and a second slider disposed on the second mounting plate, the second slider being slidably connected to the first slide rail.

[0008] By adopting the above technical solution, the second slider is slidably connected to the first slide rail to guide the movement of the second mounting plate, thereby ensuring the support and guidance of the second cantilever assembly relative to the first cantilever assembly and avoiding the problem of cantilever sagging and inaccurate material hooking position caused by long stroke and large load.

[0009] Preferably, the first cantilever assembly further includes a first slider disposed on the first mounting plate, and the second cantilever assembly further includes a second slide rail disposed on the second mounting plate along the length direction, wherein the first slider and the second slide rail are slidably connected.

[0010] By adopting the above technical solution, the second slider is slidably connected to the first slide rail, and the first slider is slidably connected to the second slide rail, achieving dual guidance and support. This is different from the traditional unidirectional guidance and support, making the transfer of large-sized and heavy products safer, more efficient, and more stable.

[0011] Preferably, the primary drive mechanism includes: a primary drive gear rotatably mounted on the first cantilever assembly; a primary driven gear rotatably mounted on the first cantilever assembly; a primary timing belt sleeved on the primary drive gear and the primary driven gear; a primary drive connector, one end of which is connected to the primary timing belt and the other end of which is connected to the second cantilever assembly; and a primary drive member mounted on the first cantilever assembly for driving the primary drive gear to rotate.

[0012] By adopting the above technical solution, the primary drive component can be used in conjunction with a servo motor and a planetary reducer. The servo motor has adjustable speed and controllable tension. It also cleverly combines the high precision and high efficiency of gear transmission with the smoothness and low maintenance of synchronous belt transmission, forming a transmission system with complementary advantages.

[0013] Preferably, the secondary drive mechanism includes: a secondary transmission gear rotatably mounted on the second cantilever assembly; a secondary driven gear rotatably mounted on the second cantilever assembly; a secondary synchronous belt sleeved on the secondary transmission gear and the secondary driven gear; and a secondary drive connector, one end of which is connected to the secondary synchronous belt and the other end of which is connected to the third cantilever assembly.

[0014] By adopting the above technical solution, when the secondary transmission gear rotates, it works with the secondary driven gear to drive the secondary synchronous belt to move. The secondary synchronous belt drives the secondary drive connector on it to move, thereby causing the third cantilever assembly to extend or retract. This cleverly combines the high precision and high efficiency of gear transmission with the smoothness and low maintenance of synchronous belt transmission, forming a transmission system with complementary advantages.

[0015] Preferably, the transmission connection mechanism includes: a transmission connection rack disposed on the first mounting plate along the movement direction of the second cantilever assembly; a transmission connection gear connected to the secondary transmission gear and meshing with the transmission connection rack; and a transmission connection rod whose two ends are respectively connected to the transmission connection gear and the secondary transmission gear. When the second cantilever assembly moves along the length direction of the first cantilever assembly, the transmission connection gear rotates on the transmission connection rack to drive the secondary transmission gear to rotate.

[0016] By adopting the above technical solution, when the second cantilever assembly moves along the length direction of the first cantilever assembly, it drives the transmission connecting gear to roll on the transmission connecting rack, and drives the secondary transmission gear to rotate synchronously through the transmission connecting rod; the meshing characteristics of the gear and rack ensure transmission accuracy, and the follow-up design realizes autonomous collaborative transmission. The simplified structure reduces system complexity and maintenance costs, while taking into account load adaptability and environmental tolerance. It is particularly suitable for multi-stage cantilever transmission systems, automated telescopic equipment and other application scenarios with high requirements for synchronization, accuracy and reliability.

[0017] Preferably, the third cantilever assembly includes a third mounting plate and a third slide rail disposed on the third mounting plate along the length direction, the hook member is disposed at the end of the third slide rail away from the third mounting plate, and the second cantilever assembly further includes a third slider, the third slider being slidably connected to the third slide rail.

[0018] By adopting the above technical solution, the third slider and the third slide rail are slidably connected, which improves the support and guidance of the second cantilever assembly for the third cantilever assembly, making the movement of the third cantilever assembly more stable, and avoiding the problem of cantilever sagging and inaccurate material hooking position caused by long stroke and heavy load.

[0019] Preferably, the hook component includes: a hook mounting plate, the hook mounting plate having at least two first connecting holes, and the third slide rail having a plurality of second connecting holes arranged along the length direction and corresponding to the first connecting holes; a hook limiting mounting part disposed on the hook mounting plate, the hook limiting mounting part having a movable limiting groove, a first limiting surface, and a second limiting surface; and a hook claw hinged in the movable limiting groove.

[0020] By adopting the above technical solution, the hook claw can rotate to abut against the first limiting surface, at which point the hook claw is in an unfolded state and can hook materials; at the same time, the hook claw can rotate to abut against the second limiting surface, at which point the hook claw is in a folded state, occupying less space and facilitating transportation.

[0021] Preferably, the first cantilever assembly further includes a guide wheel rotatably mounted on the first mounting plate, the guide wheel being used to guide the primary timing belt.

[0022] By adopting the above technical solution, the wrap angle of the timing belt is adjusted by the guide wheel to optimize the meshing effect and transmission reliability of the timing belt.

[0023] Preferably, a positioning detection mechanism is provided between the first mounting plate and the primary drive connector. The positioning detection mechanism includes: a positioning detection mounting plate connected to the first mounting plate; a positioning detection switch disposed on the positioning detection mounting plate and electrically connected to the primary drive connector; and a positioning detection component disposed on the primary drive connector and corresponding to the positioning detection switch. When the primary synchronous belt drives the primary drive connector to move to the point where the positioning detection component is opposite to the positioning detection switch, the positioning detection switch sends a positioning signal to drive the primary drive connector to stop working.

[0024] By adopting the above technical solution, when the first-level synchronous belt drives the first-level drive connector to move to the position detection component and the position detection switch, the position detection switch sends a position signal, which promptly drives the first-level drive component to stop working. This not only solves the problem of accurate positioning of automated equipment, but also has a simple structure, low failure rate, no need for regular calibration or complex maintenance, only routine inspection and cleaning, thus reducing long-term operating costs.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The first-stage drive mechanism drives the second cantilever assembly to extend the first cantilever assembly along its length. Simultaneously, the transmission connection mechanism drives the second-stage drive mechanism to synchronously extend the third cantilever assembly, thus enabling the hook to extend and hook the material. This two-stage telescopic synchronous drive allows for a longer travel distance within a limited space. Furthermore, the first cantilever assembly supports and guides the second cantilever assembly, and the second cantilever assembly supports and guides the third cantilever assembly, providing excellent guidance and support in both extended and retracted states. This differs from traditional unidirectional guidance and support, making the transfer of large and heavy products safer, more efficient, and more stable. 2. By sliding the second slider to the first slide rail and vice versa, dual guidance and support are achieved, which is different from the traditional unidirectional guidance and support. This makes it safer, more efficient and stable when moving large and heavy products. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0027] Figure 2 This is a partial structural diagram of an embodiment of this application. Figure 1 .

[0028] Figure 3 This is a partial exploded view of an embodiment of this application. Figure 1 .

[0029] Figure 4 This is a partial structural diagram of an embodiment of this application. Figure 2 .

[0030] Figure 5 This is a partial exploded view of an embodiment of this application. Figure 2 .

[0031] Explanation of reference numerals in the attached figures: 1. First cantilever assembly; 11. First mounting plate; 12. First slide rail; 13. First slider; 2. Second cantilever assembly; 21. Second mounting plate; 22. Second slider; 23. Second slide rail; 24. Third slider; 3. Third cantilever assembly; 31. Third mounting plate; 32. Third slide rail; 321. Second connecting hole; 4. First-stage drive mechanism; 41. First-stage drive gear; 42. First-stage driven gear; 43. First-stage synchronous belt; 44. First-stage drive connector; 45. First-stage drive component; 451. Servo motor; 452. Planetary reducer; 5. Second-stage drive mechanism; 51. 52. Secondary transmission gear; 53. Secondary driven gear; 54. Secondary synchronous belt; 55. Secondary drive connector; 6. Transmission connection mechanism; 61. Transmission connection rack; 62. Transmission connection gear; 63. Transmission connection rod; 7. Hook component; 71. Hook mounting plate; 72. Hook limiting mounting part; 73. Hook claw; 71. First connecting hole; 81. Movable limiting groove; 82. First limiting surface; 83. Second limiting surface; 9. Position detection mechanism; 91. Position detection mounting plate; 92. Position detection switch; 93. Position detection component; 10. Guide wheel; 14. L-shaped connector. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1 to 5 This application will be described in further detail.

[0033] This application discloses a two-stage telescopic bidirectional linear guide servo hook plate structure, such as... Figure 1 As shown, the assembly includes a first cantilever assembly 1, a second cantilever assembly 2 movably mounted on the first cantilever assembly 1 along its length, a primary drive mechanism 4 positioned between the first and second cantilever assemblies 1 for driving the second cantilever assembly 2, a third cantilever assembly 3 movably mounted on the second cantilever assembly 2 along its length, a secondary drive mechanism 5 positioned between the second and third cantilever assemblies 2 for driving the third cantilever assembly 3, a transmission connection mechanism 6 for connecting the primary drive mechanism 4 and the secondary drive mechanism 5, and a hooking component 7 mounted on the third cantilever assembly 3. When the primary drive mechanism 4 drives the second cantilever assembly 2 to extend out of the first cantilever assembly 1, the transmission connection mechanism 6 drives the secondary drive mechanism 5 to synchronously extend the third cantilever assembly 3 out of the second cantilever assembly 2, thereby enabling the hooking component 7 to extend and hook material.

[0034] This application uses a primary drive mechanism to drive the second cantilever assembly to extend the first cantilever assembly along its length. Simultaneously, a transmission connection mechanism drives a secondary drive mechanism to synchronously drive the third cantilever assembly to extend the second cantilever assembly, thus enabling the hook to extend and hook the material. This two-stage telescopic synchronous drive allows for a longer travel distance within a limited space. Furthermore, the first cantilever assembly supports and guides the second cantilever assembly, and the second cantilever assembly supports and guides the third cantilever assembly, providing excellent guidance and support in both extended and retracted states. This differs from traditional unidirectional guidance and support, making the transfer of large and heavy products safer, more efficient, and more stable.

[0035] Furthermore, such as Figure 3 As shown, the first cantilever assembly 1 includes a first mounting plate 11 and a first slide rail 12 disposed on the first mounting plate 11 along the length direction. The second cantilever assembly 2 includes a second mounting plate 21 and a second slider 22 disposed on the second mounting plate 21. The second slider 22 is slidably connected to the first slide rail 12.

[0036] This application achieves the movement guidance of the second mounting plate by sliding the second slider with the first slide rail, so as to ensure the support and guidance of the second cantilever assembly relative to the first cantilever assembly, and avoid the problem of cantilever sagging and inaccurate material hooking position caused by long stroke and large load.

[0037] Furthermore, the first cantilever assembly 1 further includes a first slider 13 disposed on the first mounting plate 11, and the second cantilever assembly 2 further includes a second slide rail 23 disposed along the length direction on the second mounting plate 21, wherein the first slider 13 and the second slide rail 23 are slidably connected. This application achieves dual guidance and support through the slidable connection between the second slider and the first slide rail, and through the slidable connection between the first slider and the second slide rail, which differs from traditional unidirectional guidance and support, making the transfer of large-sized and heavy products safer, more efficient, and more stable.

[0038] Furthermore, such as Figure 2 As shown, the primary drive mechanism 4 includes a primary driving gear 41 rotatably mounted on the first cantilever assembly 1, a primary driven gear 42 rotatably mounted on the first cantilever assembly 1, a primary synchronous belt 43 sleeved on the primary driving gear 41 and the primary driven gear 42, a primary drive connector 44 with one end connected to the primary synchronous belt 43 and the other end connected to the second cantilever assembly 2, and a primary drive component 45 mounted on the first cantilever assembly 1 for driving the primary driving gear 41 to rotate. The primary drive component 45 can be used in conjunction with a servo motor 451 and a planetary reducer 452. This application achieves adjustable speed and controllable tension through servo motor control; and cleverly combines the high precision and high efficiency of gear transmission with the smoothness and low maintenance of synchronous belt transmission, forming a complementary transmission system.

[0039] Furthermore, such as Figure 3 As shown, the secondary drive mechanism 5 includes a secondary transmission gear 51 rotatably mounted on the second cantilever assembly 2, a secondary driven gear 52 rotatably mounted on the second cantilever assembly 2, a secondary synchronous belt 53 sleeved on the secondary transmission gear 51 and the secondary driven gear 52, and a secondary drive connector 54 connected at one end to the secondary synchronous belt 53 and at the other end to the third cantilever assembly 3. This application utilizes a system where the secondary transmission gear, when rotating, works in conjunction with the secondary driven gear to drive the secondary synchronous belt, which in turn drives the secondary drive connector to translate, thereby causing the third cantilever assembly to extend or retract. This cleverly combines the high precision and efficiency of gear transmission with the smoothness and low maintenance of synchronous belt transmission, forming a complementary transmission system.

[0040] Furthermore, the transmission connection mechanism 6 includes a transmission connection rack 61 disposed on the first mounting plate 11 along the movement direction of the second cantilever assembly 2, a transmission connection gear 62 connected to and meshing with the transmission connection rack 61, and a transmission connection rod 63 connecting the transmission connection gear 62 and the secondary transmission gear 51 at both ends respectively. When the second cantilever assembly 2 moves along the length direction of the first cantilever assembly 1, the transmission connection gear 62 rotates on the transmission connection rack 61 to drive the secondary transmission gear 51 to rotate. In this application, when the second cantilever assembly moves along the length direction of the first cantilever assembly, it drives the transmission connection gear to roll on the transmission connection rack, and drives the secondary transmission gear to rotate synchronously through the transmission connection rod; the meshing characteristics of the gear and rack ensure transmission accuracy, and the follow-up design achieves autonomous collaborative transmission. The simplified structure reduces system complexity and maintenance costs, while taking into account load adaptability and environmental tolerance. It is particularly suitable for multi-stage cantilever transmission systems, automated telescopic equipment, and other application scenarios with high requirements for synchronization, accuracy, and reliability.

[0041] Furthermore, such as Figure 4 As shown, the third cantilever assembly 3 includes a third mounting plate 31 and a third slide rail 32 disposed on the third mounting plate 31 along its length. The hooking member 7 is disposed at the end of the third slide rail 32 away from the third mounting plate 31. The second cantilever assembly 2 also includes a third slider 24, which is slidably connected to the third slide rail 32. This application uses a sliding connection between the third slider and the third slide rail to improve the support and guidance of the second cantilever assembly for the third cantilever assembly, making the movement of the third cantilever assembly more stable and avoiding the problem of cantilever sagging and inaccurate hooking position caused by long stroke and large load.

[0042] Furthermore, such as Figure 5As shown, the hook component 7 includes a hook mounting plate 71, a hook limiting mounting part 72 disposed on the hook mounting plate 71, and a hook claw 73. The hook mounting plate 71 is provided with at least two first connecting holes 711, and the third slide rail 32 is provided with a plurality of second connecting holes 321 arranged along the length direction and corresponding to the first connecting holes 711. The first connecting holes 711 and the second connecting holes 321 are connected and fixed by bolts, and the position of the hook mounting plate 71 on the third slide rail 32 can be adjusted along the length direction of the third slide rail 32 according to the actual use, making it more versatile. The hook limiting mounting part 72 is provided with a movable limiting groove 81, a first limiting surface 82 and a second limiting surface 83, and the hook claw 73 is hinged in the movable limiting groove 81. The hook claw 73 can rotate to abut against the first limiting surface 82. At this time, the hook claw 73 is in an unfolded state and can hook materials. At the same time, the hook claw 73 can rotate to abut against the second limiting surface 83. At this time, the hook claw 73 is in a folded state, which occupies less space and facilitates transportation.

[0043] Furthermore, such as Figure 2 As shown, the first cantilever assembly 1 also includes a guide wheel 10 rotatably mounted on the first mounting plate 11. The guide wheel 10 is used to guide the primary synchronous belt 43. The guide wheel adjusts the wrap angle of the synchronous belt to optimize the meshing effect and transmission reliability. Furthermore, a positioning detection mechanism 9 is provided between the first mounting plate 11 and the primary drive connector 44. The positioning detection mechanism 9 includes a positioning detection mounting plate 91 connected to the first mounting plate 11 via multiple L-shaped connectors 14, a positioning detection switch 92 disposed on the positioning detection mounting plate 91 and electrically connected to the primary drive connector 45, and a positioning detection element 93 disposed on the primary drive connector 44 and corresponding to the positioning detection switch 92. When the primary synchronous belt 43 drives the primary drive connector 44 to move until the positioning detection element 93 is opposite to the positioning detection switch 92, the positioning detection switch 92 sends a positioning signal to drive the primary drive connector 45 to stop working. This application solves the problem of precise positioning of automated equipment by sending a positioning signal through the positioning detection switch, resulting in a simple structure, low failure rate, no need for regular calibration or complex maintenance, only routine inspection and cleaning, and reduced long-term operating costs.

[0044] The implementation principle of a two-stage telescopic bidirectional linear guide servo hook plate structure in this application embodiment is as follows: In use, a primary drive mechanism drives the second cantilever assembly to extend the first cantilever assembly along its length. A second slider and a first slide rail are slidably connected, providing dual guidance and support, unlike traditional unidirectional guidance and support. This makes transferring large and heavy products safer, more efficient, and more stable. A secondary drive mechanism, driven by a transmission connection mechanism, synchronously drives the third cantilever assembly to extend the second cantilever assembly, thus extending the hook for material handling. A third slider and a third slide rail are slidably connected, improving the support and guidance provided by the second cantilever assembly to the third cantilever assembly, resulting in more stable movement of the third cantilever assembly and avoiding... To avoid the problems of cantilever sagging and inaccurate hooking position caused by long stroke and heavy load, a two-stage telescopic synchronous drive is adopted, which can extend and retract a longer stroke within a limited space. The first cantilever assembly supports and guides the second cantilever assembly, and the second cantilever assembly supports and guides the third cantilever assembly. This provides excellent guidance and support in both the extended and retracted states, unlike traditional unidirectional guidance and support. This makes it safer, more efficient, and more stable when transferring large and heavy products. When not in use, the second and third cantilever assemblies can be retracted, and the hook claw can rotate to abut against the second limiting surface. At this time, the hook claw is in a folded state, occupying less space and facilitating transportation.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A two-stage telescopic bidirectional linear guide servo hook plate structure, characterized in that, include; First cantilever assembly (1); The second cantilever assembly (2) is movably mounted on the first cantilever assembly (1) along the length direction of the first cantilever assembly (1); A primary drive mechanism (4) is located between the first cantilever assembly (1) and the second cantilever assembly (2) for driving the second cantilever assembly (2) to move. The third cantilever assembly (3) is movably mounted on the second cantilever assembly (2) along the length direction of the second cantilever assembly (2); The secondary drive mechanism (5) is located between the second cantilever assembly (2) and the third cantilever assembly (3) and is used to drive the third cantilever assembly (3) to move. Transmission connection mechanism (6), which is used to transmit and connect the primary drive mechanism (4) and the secondary drive mechanism (5). The hook component (7) is located on the third cantilever assembly (3). When the first-level drive mechanism (4) drives the second cantilever assembly (2) to extend out of the first cantilever assembly (1), the transmission connection mechanism (6) drives the second-level drive mechanism (5) to drive the third cantilever assembly (3) to extend out of the second cantilever assembly (2) in a synchronous manner, thereby realizing the hook component (7) extending out to hook the material.

2. The two-stage telescopic bidirectional linear guide servo hook plate structure according to claim 1, characterized in that, The first cantilever assembly (1) includes a first mounting plate (11) and a first slide rail (12) disposed on the first mounting plate (11) along the length direction. The second cantilever assembly (2) includes a second mounting plate (21) and a second slider (22) disposed on the second mounting plate (21). The second slider (22) is slidably connected to the first slide rail (12).

3. The two-stage telescopic bidirectional linear guide servo hook plate structure according to claim 2, characterized in that, The first cantilever assembly (1) further includes a first slider (13) disposed on the first mounting plate (11), and the second cantilever assembly (2) further includes a second slide rail (23) disposed on the second mounting plate (21) along the length direction, wherein the first slider (13) and the second slide rail (23) are slidably connected.

4. The two-stage telescopic bidirectional linear guide servo hook plate structure according to claim 3, characterized in that, The primary drive mechanism (4) includes: A primary drive gear (41) rotates on the first cantilever assembly (1); A first-stage driven gear (42) rotates on the first cantilever assembly (1); A primary synchronous belt (43) is fitted onto a primary driving gear (41) and a primary driven gear (42); The first-stage drive connector (44) is connected at one end to the first-stage synchronous belt (43) and at the other end to the second cantilever assembly (2); A primary drive unit (45) is mounted on the first cantilever assembly (1) and is used to drive the primary drive gear (41) to rotate.

5. The two-stage telescopic bidirectional linear guide servo hook plate structure according to claim 4, characterized in that, The secondary drive mechanism (5) includes: The secondary transmission gear (51) rotates on the second cantilever assembly (2); The secondary driven gear (52) rotates on the second cantilever assembly (2); A secondary synchronous belt (53) is fitted onto the secondary transmission gear (51) and the secondary driven gear (52); The secondary drive connector (54) is connected at one end to the secondary synchronous belt (53) and at the other end to the third cantilever assembly (3).

6. The two-stage telescopic bidirectional linear guide servo hook plate structure according to claim 5, characterized in that, The transmission connection mechanism (6) includes: A transmission connecting rack (61) is mounted on the first mounting plate (11) along the direction of movement of the second cantilever assembly (2); The transmission connecting gear (62) is connected to the secondary transmission gear (51) and meshes with the transmission connecting rack (61); The transmission connecting rod (63) is connected at both ends to the transmission connecting gear (62) and the secondary transmission gear (51). When the second cantilever assembly (2) moves along the length direction of the first cantilever assembly (1), the transmission connecting gear (62) rotates on the transmission connecting rack (61) to drive the secondary transmission gear (51) to rotate.

7. The two-stage telescopic bidirectional linear guide servo hook plate structure according to claim 1, characterized in that, The third cantilever assembly (3) includes a third mounting plate (31) and a third slide rail (32) disposed on the third mounting plate (31) along the length direction. The hook member (7) is disposed at one end of the third slide rail (32) away from the third mounting plate (31). The second cantilever assembly (2) also includes a third slider (24), which is slidably connected to the third slide rail (32).

8. The two-stage telescopic bidirectional linear guide servo hook plate structure according to claim 7, characterized in that, The hook component (7) includes: The hook mounting plate (71) is provided with at least two first connecting holes (711), and the third slide rail (32) is provided with a plurality of second connecting holes (321) arranged along the length direction and corresponding to the first connecting holes (711). The hook limiting installation part (72) is provided on the hook installation plate (71). The hook limiting installation part (72) is provided with a movable limiting groove (81), a first limiting surface (82) and a second limiting surface (83). The hook claw (73) is hinged in the movable limiting groove (81).

9. The two-stage telescopic bidirectional linear guide servo hook plate structure according to claim 4, characterized in that, The first cantilever assembly (1) further includes a guide wheel (10) rotatably mounted on the first mounting plate (11), the guide wheel (10) being used to guide the primary synchronous belt (43).

10. The two-stage telescopic bidirectional linear guide servo hook plate structure according to claim 4, characterized in that, A positioning detection mechanism (9) is provided between the first mounting plate (11) and the first-stage drive connector (44), the positioning detection mechanism (9) comprising: The positioning detection mounting plate (91) is connected to the first mounting plate (11); A position detection switch (92) is mounted on a position detection mounting plate (91) and electrically connected to a primary drive unit (45); The positioning detection element (93) is located on the primary drive connector (44) and corresponds to the positioning detection switch (92). When the primary synchronous belt (43) drives the primary drive connector (44) to move to the position where the positioning detection element (93) is opposite to the positioning detection switch (92), the positioning detection switch (92) sends a positioning signal to drive the primary drive element (45) to stop working.

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