Hoisting structure for conveying line

Abstract

The invention discloses a hoisting structure for a conveying line, and belongs to the technical field of conveying equipment, the hoisting structure comprises a fixing rod, a hanging assembly and a hanging rod, the hanging assembly comprises a lifting hook and a guide column, the lifting hook is fixed at the bottom of the guide column, and the guide column is rotationally matched with the fixing rod; a transverse handle is fixed at one end of the suspender; the first locking assembly is used for limiting rotation of the lifting rod on the lifting hook, and the second locking assembly is used for fixing the guide column on the fixing rod. The hanging rod can rotate with the transverse handle as the center, the guide column is rotationally connected with the fixing rod fixed to the sliding unit in the hanging type rail, and therefore the hanging rod can rotate by 360 degrees, and a workpiece can be hung conveniently. When the two arc-shaped limiting blocks in the first locking assembly slide on the arc-shaped base, the grooves in the ends of the two arc-shaped limiting blocks can abut against the suspender in a matched mode, the included angle between the suspender and the guide column is fixed, and therefore the situation that the suspender shakes on the lifting hook in the conveying process is greatly reduced or avoided.

Description

Technical Field

[0001] This invention relates to the field of conveying equipment technology, and more specifically to a hoisting structure for a conveyor line. Background Technology

[0002] Suspended track conveyor lines are a common type of conveying equipment. Typically, a track is fixed high up by a frame, and several sliding units are installed inside the track, connected by chains. Each sliding unit has a hook at its bottom, and a boom is usually hung on the hook, with the workpiece then suspended from the boom. Because different workpieces often need to be suspended, the boom needs to be adjustable on the hook to accommodate different workpieces. Since there is no fixed structure between the boom and the hook, the workpiece and boom will sway during transport due to inertia, potentially causing collisions between workpieces. This significant swaying, especially during painting, directly affects the painting effect.

[0003] Therefore, the present invention provides a hoisting structure for a conveyor line. Summary of the Invention

[0004] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a hoisting structure for conveyor lines that can fix the lifting rods and hooks, thereby preventing the workpiece from swaying during transport.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a hoisting structure for a conveyor line, comprising: A fixing rod, which is fixed to a sliding unit within the suspended track; A suspension assembly, comprising a hook and a guide column, wherein the hook is fixed to the bottom of the guide column, and the guide column is rotatably engaged with a fixed rod; A boom, one end of which is fixed with a horizontal handle for hanging on a hook, and the other end is provided with a hook. When the horizontal handle is on the hook, the boom can rotate around the horizontal handle. The first locking assembly is used to restrict the rotation of the boom on the hook. The first locking assembly includes an arc-shaped seat and two arc-shaped limiting blocks. The arc-shaped seat is slidably sleeved on the guide post. Two slide tracks are opened in the arc-shaped seat. A stop block that cooperates with the arc-shaped seat is provided at the end of the guide post near the hook. The two arc-shaped limiting blocks are slidably installed on the two slide tracks respectively. The ends of the arc-shaped limiting blocks are provided with grooves for locking the boom. The second locking assembly is used to fix the guide post to the fixing rod; The arc-shaped seat is provided with a limiting mechanism for unidirectional limiting of the arc-shaped limiting block and an unlocking mechanism for releasing the unidirectional limiting. During the process of the arc-shaped limiting block moving forward along the slide and abutting against the hanging rod, the limiting mechanism prevents the arc-shaped limiting block from moving in the reverse direction.

[0006] Preferably, the limiting mechanism includes: The limiting teeth are formed on the arc-shaped limiting block; A limiting frame, wherein the limiting frame is fixed on an arc-shaped base; A limiting rod, which is slidably mounted on a limiting frame; A locking block is fixed to one end of a limiting rod. The arc-shaped seat has a through hole communicating with the slide rail, and the locking block is slidably mounted on the through hole. A locking spring, which is sleeved on the limiting rod between the arc-shaped seat and the limiting frame, has elastic potential energy to push the locking block toward the slide. When the arc-shaped limiting block slides forward within the slide, the limiting teeth can push the locking block to compress the spring.

[0007] Preferably, the first locking component further includes: The first rotating sleeve is threadedly mounted on the guide post; The inner rod is fixed on the arc-shaped seat and parallel to the guide post; The outer rod is sleeved on the inner rod. When the first rotating sleeve moves on the guide post, the first rotating sleeve drives the outer rod to move. The first spring is sleeved on the inner rod; An elastic rod, one end of which is hinged to the outer rod, and the other end of which is hinged to the arc-shaped limiting block.

[0008] Preferably, the unlocking mechanism includes: An unlocking block is slidably mounted on a limiting frame, and the unlocking block is provided with a recess, a protrusion, and a ramp located between the protrusion and the recess; When the top of the limiting rod is located in the recess, the locking block abuts against the limiting tooth; When the top of the limiting rod is on the protrusion, the locking block disengages from the limiting tooth.

[0009] Preferably, a first magnet and a second magnet are fixed at both ends of the unlocking block, a third magnet is provided on the outer rod, and a fourth magnet is provided on the arc-shaped limiting block; When the third magnet pushes the first magnet to move, the limiting rod moves from the concave part to the convex part, and the locking block disengages from the limiting tooth. When the fourth magnet pushes the second magnet to move, the limiting rod moves from the protrusion to the concave part, and the locking block abuts against the limiting tooth under the action of the locking spring.

[0010] Preferably, the guide post includes: The rectangular part has a hook fixed to its bottom and a guide sleeve fixed to it. The outer rod is slidably installed inside the guide sleeve. A cylindrical portion, which is fixed to the top of the rectangular portion.

[0011] Preferably, a flange is fixed on the side wall of the first rotating sleeve, and a U-shaped part that is engaged with the flange is fixed on the outer rod.

[0012] Preferably, the second locking component includes: The second rotating sleeve is threadedly mounted on the fixed rod; A limiting sleeve, which is rotatably engaged with a second rotating sleeve and is splinedly engaged with a fixed rod; A tapered sleeve, wherein the tapered sleeve is mounted on the guide post via a spline; When the second rotating sleeve moves on the fixed rod, the second rotating sleeve drives the limiting sleeve to move; the limiting sleeve is provided with a tapered surface that cooperates with the tapered sleeve.

[0013] Preferably, the conical sleeve is disposed on the top of the stepped guide post, and a second spring is sleeved on the guide post between the conical sleeve and the stepped portion of the guide post.

[0014] Preferably, a limiting groove is provided on the hook, and when the horizontal handle is hung on the hook, the lifting rod is located in the limiting groove.

[0015] The beneficial effects of this invention are as follows: This invention features a guide post with a hook at its bottom for suspending the horizontal handle of the boom, allowing the boom to rotate around the handle. The guide post is rotatably connected to a fixed rod on a sliding unit within the suspension track, enabling the boom to rotate 360° for easy workpiece suspension. A first locking assembly and a second locking assembly are respectively installed on the guide post and the fixed rod. When the two arc-shaped limiting blocks slide on the arc-shaped seat and approach each other, their end grooves together abut against the boom, fixing the angle between the boom and the guide post. This significantly reduces or prevents the boom from swaying on the hook during transport, thus preventing workpiece swaying. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a hoisting structure for a conveyor line provided in an embodiment of the present invention.

[0018] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0019] Figure 3 for Figure 1 A magnified view of a section at point B.

[0020] Figure 4 This is a perspective view of the suspension assembly, the first locking mechanism, and the boom of the present invention.

[0021] Figure 5 This is a schematic diagram of the first locking mechanism of the present invention fixing the rod to the suspension assembly.

[0022] Figure 6 This is a top view of the arc-shaped seat, arc-shaped limiting block, limiting mechanism, and unlocking mechanism of the present invention.

[0023] Figure 7 for Figure 6 Sectional view at point AA.

[0024] Explanation of reference numerals in the attached figures: 1. Suspended track; 2. Fixed rod; 3. Hook; 4. Guide column; 5. Hanging rod; 6. Horizontal handle; 7. Hook; 8. Arc-shaped seat; 9. Arc-shaped limiting block; 10. Slide rail; 11. Stop block; 12. Groove; 13. Limiting tooth; 14. Limiting frame; 15. Limiting rod; 16. Locking block; 17. Limiting groove; 18. Locking spring; 19. First rotating sleeve; 20. Inner rod; 21. Outer rod; 22. First spring; 23. Elastic rod; 24. Unlocking block; 25. Protrusion; 26. Concave part; 27. First magnet; 28. Second magnet; 29. ​​Third magnet; 30. Fourth magnet; 31. Rectangular part; 32. Guide sleeve; 33. Columnar part; 34. U-shaped part; 35. Second rotating sleeve; 36. Limiting sleeve; 37. Conical sleeve; 38. Second spring; 39. Rack. Detailed Implementation

[0025] 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.

[0026] Example 1: like Figures 1 to 7 As shown, Embodiment 1 of the present invention provides a hoisting structure for a conveyor line, used on a suspended track 1 conveyor line. This structure can fix the hoisting rod 5 to the sliding unit within the suspended track 1, thereby significantly reducing the swaying of the hoisting rod 5 and improving the stability of the suspended items. The suspended track 1 conveyor line can utilize existing equipment. The present invention does not improve the sliding unit of the suspended conveyor line or the suspended track 1 itself, therefore its structure will not be described in detail.

[0027] The hoisting structure for the conveyor line provided by this invention specifically includes a fixed rod 2 fixed to a sliding unit and a guide column 4 rotatably mounted below the fixed rod 2. The guide column 4 specifically includes a rectangular portion 31 and a cylindrical portion 33, wherein the cylindrical portion 33 is located at the end of the rectangular portion 31 closest to the fixed rod 2, and the cylindrical portion 33 is rotatably connected to the fixed rod 2. A hook 3 is fixed to the bottom of the rectangular portion 31, and a limiting groove 17 is formed on the hook 3. The hoisting rod 5 used in this invention has a horizontal handle 6 fixed to one end and a hook 7 at the other end. Figure 1 and Figure 4 As shown, the lifting rod 5 can pass through the limiting groove 17, so that the horizontal handle 6 is located on the hook 3. In this way, under the constraint of the hook 3 and the limiting groove 17, the lifting rod 5 can rotate on the hook 3 with the horizontal handle 6 as the center. Since the guide column 4 can also rotate on the fixed rod 2, the lifting rod 5 can rotate 360 ​​degrees, which facilitates the hanging of workpieces. When two lifting rods 5 are used to hang a workpiece, the lifting rods 5 will tilt.

[0028] To reduce the swaying of the boom 5 during transport, this invention includes a first locking assembly and a second locking assembly. The first locking assembly restricts the rotation of the boom 5 on the hook 3, while the second locking assembly limits the relative rotation of the guide post 4 and the fixed rod 2. Specifically, the first locking assembly includes an arc-shaped seat 8 slidably fitted onto the rectangular portion 31 and two arc-shaped limiting blocks 9. Two arc-shaped slideways 10 are formed within the arc-shaped seat 8, and the two arc-shaped limiting blocks 9 are slidably installed in the two slideways 10 respectively. A groove 12 is formed on the lower end of each arc-shaped limiting block 9. Figure 4 and Figure 5It can be seen that when the two arc-shaped limiting blocks 9 move forward in the slide 10 until the grooves 12 on the two arc-shaped limiting blocks 9 block the rod 5, as long as the position of the arc-shaped seat 8 remains unchanged and the arc-shaped limiting blocks 9 cannot move backward in the slide 10, the relative position of the rod 5 and the hook 3 will be fixed, thereby achieving the purpose of restricting the rod 5 from rotating on the hook 3.

[0029] To constrain the position of the arc-shaped seat 8, the present invention further provides a first rotating sleeve 19 threaded onto the cylindrical portion 33 of the guide post 4. When the first rotating sleeve 19 rotates, it can move along the guide post 4. Figure 4 As shown, the lower edge of the first rotating sleeve 19 has a flange. Two guide sleeves 32 are fixed on the rectangular portion 31, and an outer rod 21 is slidably installed inside each of the two guide sleeves 32. The top of the outer rod 21 is fixed with a U-shaped portion 34 that is engaged with the flange. The flange can slide within the U-shaped portion 34, which means that the U-shaped portion 34 does not restrict the rotation of the first rotating sleeve 19 on the guide post 4. However, when the first rotating sleeve 19 moves on the guide post 4, the U-shaped portion 34 can be moved by the first rotating sleeve 19.

[0030] An inner rod 20 is slidably inserted into the outer rod 21. The bottom end of the inner rod 20 is fixed to the arc-shaped seat 8. A first spring 22 is sleeved on the inner rod 20 between the arc-shaped seat 8 and the outer rod 21. When the first rotating sleeve 19 moves on the guide post 4, the outer rod 21 pushes the arc-shaped seat 8 downwards along the guide post 4 via the first spring 22 until the arc-shaped seat 8 abuts against the fixed stop 11 at the bottom of the guide post 4. At this point, the arc-shaped seat 8 is pushed against the stop 11 by the first spring 22, thus fixing its position.

[0031] To drive the two arc-shaped limiting blocks 9 to move within their respective slide rails 10, the present invention hinges two elastic rods 23 to the outer rod 21. The ends of the two elastic rods 23 furthest from the outer rod 21 are respectively hinged to the two arc-shaped limiting blocks 9. Thus, when the arc-shaped seat 8 abuts against the stop block 11, as the first rotating sleeve 19 continues to move downwards along the guide post 4, the first spring 22 is compressed by the outer rod 21. The outer rod 21 then drives the arc-shaped limiting blocks 9 to move forward within the slide rail 10 via the elastic rods 23, until one of the arc-shaped limiting blocks 9 abuts against the lifting rod 5. Figure 5 As shown, since the elastic rod 23 can undergo elastic deformation, the outer rod 21 can continue to move downwards until another arc-shaped limiting block 9 also abuts against the lifting rod 5. The two elastic rods 23 have different degrees of deformation. By setting a limiting mechanism on the arc-shaped seat 8 to limit the arc-shaped limiting block 9 in one direction, the arc-shaped limiting block 9 can be prevented from moving in the opposite direction, thereby allowing the two arc-shaped limiting blocks 9 to cooperate in limiting the lifting rod 5.

[0032] like Figure 6 and Figure 7As shown, the limiting mechanism of this invention specifically includes limiting teeth 13 formed on the arc-shaped limiting block 9, a limiting frame 14 fixed on the arc-shaped base 8, a limiting rod 15 movably inserted into the limiting frame 14, and a locking block 16 fixed to one end of the limiting rod 15. The arc-shaped base 8 has a through hole communicating with the slide rail 10, and the locking block 16 is slidably mounted on the through hole. A locking spring 18 is sleeved on the limiting rod 15 between the arc-shaped base 8 and the limiting frame 14. Figure 7 For reference observation, when the arc-shaped limiting block 9 in the slide rail 10 rotates counterclockwise, the inclined surface on the limiting tooth 13 engages with the inclined surface on the locking block 16, lifting the locking block 16 and allowing the arc-shaped limiting block 9 to rotate counterclockwise, i.e., in the forward direction. However, when the arc-shaped limiting block 9 attempts to rotate clockwise (i.e., in the reverse direction), the limiting tooth 13 is blocked by the locking block 16 and cannot rotate. This achieves unidirectional limiting of the arc-shaped limiting block 9's sliding direction within the slide rail 10.

[0033] With the above settings, when the first rotating sleeve 19 moves downward, it can drive the arc-shaped seat 8 and the arc-shaped limiting block 9 to move, so that the arc-shaped seat 8 abuts against the stop block 11, and the two arc-shaped limiting blocks 9 cooperate to abut against the lifting rod 5, thereby limiting the lifting rod 5.

[0034] Example 2: Based on Embodiment 1, in order to allow the arc-shaped limiting block 9 to move in the opposite direction, thereby releasing the restriction on the lifting rod 5, the present invention further designs an unlocking mechanism.

[0035] like Figures 5 to 7 As shown, the unlocking mechanism designed in this invention includes an unlocking block 24 slidably mounted on the limiting frame 14. The unlocking block 24 is provided with a recess 26, a protrusion 25, and a ramp located between the protrusion 25 and the recess 26. A horizontal bar perpendicular to the limiting rod 15 is fixed to the top of the limiting rod 15. In the initial state, the horizontal bar is located on the recess 26. At this time, the locking block 16 can abut against the limiting tooth 13 under the action of the locking spring, thereby restricting the movement of the arc-shaped limiting block 9 in one direction. When the unlocking block 24 moves on the limiting frame 14, the ramp can lift the horizontal bar, so that the horizontal bar is located on the protrusion 25. At this time, the locking block 16 compresses the locking spring and disengages from the limiting tooth 13, so that the arc-shaped limiting block 9 can move in the opposite direction.

[0036] To facilitate the movement of the unlocking block 24 and the change of the state of the limiting mechanism, such as Figure 7 As shown, the present invention fixes a first magnet 27 and a second magnet 28 to both ends of the unlocking block 24. Figure 5 As shown, the present invention has a third magnet 29 fixed on the outer rod 21 by a bracket, and a fourth magnet 30 fixed on the arc-shaped limiting block 9 by a bracket.

[0037] In the initial state, the crossbar is located in the recess 26. At this time, the arc-shaped limiting block 9 can only move in one direction in the slide 10. As the first rotating sleeve 19 moves up and down on the guide post 4, the arc-shaped limiting block 9 finally abuts against the hanging rod 5. At this time, the arc-shaped limiting block 9 cannot move in the opposite direction. When it is necessary to release the restriction on the boom 5, the first rotating sleeve 19 is driven to move downward, which will cause the third magnet 29 on the outer rod 21 to approach the first magnet 27. The third magnet 29 pushes the first magnet 27 with magnetic force, causing the unlocking block 24 to slide on the limiting frame 14, allowing the limiting rod 15 to move from the concave part 26 to the convex part 25. The locking block 16 disengages from the limiting tooth 13, releasing the one-way restriction. Then the first rotating sleeve 19 rises, pulling the arc-shaped limiting block 9 to move in the opposite direction in the slide rail 10. When the fourth magnet 30 approaches the second magnet 28, the fourth magnet 30 pushes the second magnet 28 with magnetic force, causing the unlocking block 24 to slide on the limiting frame 14, allowing the limiting rod 15 to move from the convex part 25 to the concave part 26. The locking block 16 abuts against the limiting tooth 13 under the action of the locking spring 18, causing the arc-shaped limiting block 9 to be unidirectionally restricted again.

[0038] Example 3: Based on Embodiment 1 and Embodiment 2, as Figure 1 and Figure 2 As shown, the second locking assembly used in this invention includes a second rotating sleeve 35 threaded onto the fixed rod 2 and a tapered sleeve 37 slidably mounted on the guide post 4. The tapered sleeve 37 and the guide post 4 are connected by a spline joint. The top of the guide post 4 is stepped, as shown... Figure 2 As shown, the tapered sleeve 37 is located on the narrower section at the top of the guide post 4. A second spring 38 is fitted onto the guide post 4 between the tapered sleeve 37 and the stepped section of the guide post 4. A limiting sleeve 36 is rotatably mounted on one end of the second rotating sleeve 35 near the tapered sleeve 37. The limiting sleeve 36 and the fixed rod 2 are connected by a key.

[0039] With the above configuration, when the second rotating sleeve 35 rotates on the fixed rod 2, it can move along the fixed rod 2, thereby driving the limiting sleeve 36 to move on the fixed rod 2. When the limiting sleeve 36 moves downward along the fixed rod 2, the conical surface inside it gradually contacts and pushes the conical sleeve 37, causing the conical sleeve 37 to compress the second spring 38. When the conical sleeve 37 and the limiting sleeve 36 are pressed together, the guide post 4 and the fixed rod 2 can be fixed by the friction between the limiting sleeve 36 and the conical sleeve 37.

[0040] Example 4: Based on the above embodiment, multiple parallel racks 39 are fixed on the frame below the suspended track 1, and toothed rings are fixed on both the first rotating sleeve 19 and the second rotating sleeve 35. Thus, when the sliding unit moves along the suspended track 1, the toothed rings on the second rotating sleeve 35 and the first rotating sleeve 19 mesh with the corresponding racks 39, thereby rotating. This achieves the effect described in the above embodiment where, when the second rotating sleeve 35 and the first rotating sleeve 19 rotate, the guide post 4 and the fixing rod 2 are fixed, and the hanging rod 5 and the guide post 4 are fixed.

[0041] It should be noted that when fixing the boom 5, the second rotating sleeve 35 should be rotated first to fix the guide post 4 and the fixing rod 2, and then the first rotating sleeve 19 should be rotated to fix the boom 5; when releasing the fixing of the boom 5, the first rotating sleeve 19 should be rotated first to unlock the boom 5, and then the second rotating sleeve 35 should be rotated to release the fixing state between the guide post 4 and the fixing rod 2.

[0042] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A hoisting structure for a conveyor line, characterized in that, include: A fixed rod (2) is fixed to a sliding unit inside a suspended track (1); The suspension assembly includes a hook (3) and a guide post (4), the hook (3) being fixed to the bottom of the guide post (4), and the guide post (4) being rotatably engaged with the fixing rod (2); The boom (5) has a horizontal handle (6) fixed at one end for hanging on the hook (3) and a hook (7) at the other end. When the horizontal handle (6) is on the hook (3), the boom (5) can rotate around the horizontal handle (6). The first locking assembly is used to restrict the rotation of the boom (5) on the hook (3). The first locking assembly includes an arc-shaped seat (8) and two arc-shaped limiting blocks (9). The arc-shaped seat (8) is slidably sleeved on the guide post (4). Two slides (10) are opened in the arc-shaped seat (8). A stop block (11) that cooperates with the arc-shaped seat (8) is provided at one end of the guide post (4) near the hook (3). The two arc-shaped limiting blocks (9) are slidably installed on the two slides (10). The ends of the arc-shaped limiting blocks (9) are provided with grooves (12) for locking the boom (5). The second locking assembly is used to fix the guide post (4) to the fixing rod (2); The arc-shaped seat (8) is provided with a limiting mechanism for unidirectional limiting of the arc-shaped limiting block (9) and an unlocking mechanism for releasing the unidirectional limiting. During the process of the arc-shaped limiting block (9) moving forward along the slide (10) and abutting against the rod (5), the limiting mechanism prevents the arc-shaped limiting block (9) from moving in the reverse direction.

2. The hoisting structure for a conveyor line as described in claim 1, characterized in that, The limiting mechanism includes: Limiting teeth (13) are provided on the arc-shaped limiting block (9); Limiting frame (14), the limiting frame (14) is fixed on the arc-shaped seat (8); Limiting rod (15), which is slidably mounted on limiting frame (14); The locking block (16) is fixed to one end of the limiting rod (15). The arc-shaped seat (8) has a through hole communicating with the slide (10). The locking block (16) is slidably installed on the through hole. Locking spring (18), which is sleeved on the limiting rod (15) between the arc-shaped seat (8) and the limiting frame (14), has elastic potential energy to push the block (16) towards the slide (10); When the arc-shaped limiting block (9) slides forward in the slide (10), the limiting tooth (13) can push the locking block (16) to compress the spring.

3. The hoisting structure for a conveyor line as described in claim 2, characterized in that, The first locking component further includes: The first rotating sleeve (19) is threaded onto the guide post (4); The inner rod (20) is fixed on the arc-shaped seat (8) and parallel to the guide post (4); The outer rod (21) is sleeved on the inner rod (20). When the first rotating sleeve (19) moves on the guide post (4), the first rotating sleeve (19) drives the outer rod (21) to move. The first spring (22) is sleeved on the inner rod (20); An elastic rod (23) is hinged at one end to an outer rod (21) and at the other end to an arc-shaped limiting block (9).

4. The hoisting structure for a conveyor line as described in claim 3, characterized in that, The unlocking mechanism includes: Unlocking block (24), which is slidably mounted on limiting frame (14), and the unlocking block (24) is provided with recess (26), protrusion (25) and ramp located between protrusion (25) and recess (26); When the top of the limiting rod (15) is located in the recess (26), the locking block (16) abuts against the limiting tooth (13); When the top of the limiting rod (15) is on the protrusion (25), the locking block (16) disengages from the limiting tooth (13).

5. A hoisting structure for a conveyor line as described in claim 4, characterized in that, The two ends of the unlocking block (24) are respectively fixed with a first magnet (27) and a second magnet (28), the outer rod (21) is provided with a third magnet (29), and the arc-shaped limiting block (9) is provided with a fourth magnet (30). When the third magnet (29) pushes the first magnet (27) to move, the limiting rod (15) moves from the concave part (26) to the convex part (25), and the locking block (16) disengages from the limiting tooth (13); When the fourth magnet (30) pushes the second magnet (28) to move, the limiting rod (15) moves from the protrusion (25) to the concave part (26), and the locking block (16) abuts against the limiting tooth (13) under the action of the locking spring (18).

6. The hoisting structure for a conveyor line as described in claim 3, characterized in that, The guide post (4) includes: The rectangular part (31) has a hook (3) fixed at the bottom of the rectangular part (31), and a guide sleeve (32) is fixed on the rectangular part (31). The outer rod (21) is slidably installed in the guide sleeve (32). A cylindrical part (33) is fixed to the top of a rectangular part (31).

7. A hoisting structure for a conveyor line as described in claim 3, characterized in that, A flange is fixed on the side wall of the first rotating sleeve (19), and a U-shaped part (34) is fixed on the outer rod (21) and is locked on the flange.

8. The hoisting structure for a conveyor line as described in claim 1, characterized in that, The second locking component includes: The second rotating sleeve (35) is threaded onto the fixed rod (2); Limiting sleeve (36), the limiting sleeve (36) is rotatably engaged with the second rotating sleeve (35), and the limiting sleeve (36) is splinedly engaged with the fixing rod (2); A tapered sleeve (37) is provided on the guide post (4) via a spline; When the second rotating sleeve (35) moves on the fixed rod (2), the second rotating sleeve (35) drives the limiting sleeve (36) to move; the limiting sleeve (36) is provided with a tapered surface that cooperates with the tapered sleeve (37).

9. A hoisting structure for a conveyor line as described in claim 8, characterized in that, The conical sleeve (37) is set on the top of the stepped guide post (4), and a second spring (38) is sleeved on the guide post (4) between the conical sleeve (37) and the step of the guide post (4).

10. A hoisting structure for a conveyor line as described in claim 1, characterized in that, A limiting groove (17) is provided on the hook (3). When the horizontal handle (6) is hung on the hook (3), the rod (5) is located in the limiting groove (17).

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