A protection device for a rope of a stacker

Abstract

The utility model provides a kind of rope slackening or broken rope protection device of stacking machine, comprising: vertical frame, trigger assembly, be set on the vertical frame, and be used for connecting steel wire rope, the trigger assembly includes trigger rod;Safety tongs, be set on the vertical frame, the safety tongs are used to clamp or loosen guide rail;Pulling assembly, along first direction slidingly set on the vertical frame, the pulling assembly is connected with the safety tongs;Brake cable, one end of the brake cable is connected the trigger rod, other end is connected the pulling assembly, the trigger rod can tighten or loosen the brake cable.The utility model embodiment identifies fault and intervention quickly, reduce downtime, reduce braking time, improve the security of stacking machine.

Description

Technical Field

[0001] This utility model belongs to the field of stacker crane technology, and in particular relates to a protective device for stacker cranes in case of slack or broken ropes. Background Technology

[0002] Currently, most anti-fall devices used in stacker cranes are triggered when the loading platform stalls, relying on the speed limiter to activate the safety clamp and lock the guide rail. This results in a brief delay, leading to excessively long braking distances and potential safety hazards. Summary of the Invention

[0003] To address at least one technical problem in the prior art, this utility model provides a protective device for stacker cranes in case of slack or broken ropes, featuring short braking time and a high safety factor. To achieve the above technical objectives, the technical solution adopted by this utility model is as follows: This utility model embodiment provides a protection device for stacker cranes in case of slack or broken ropes, including: Vertical frame, A triggering assembly, disposed on the vertical frame and used to connect the wire rope, the triggering assembly including a trigger rod; A safety clamp is mounted on the vertical frame and is used to clamp or release the guide rail. A lifting assembly is slidably disposed on the vertical frame along a first direction, and the lifting assembly is connected to the safety clamp. A brake cable, one end of which is connected to the trigger rod and the other end to the lifting assembly. The trigger lever can tighten or loosen the brake cable; When the trigger rod pulls the brake cable, the lifting assembly enables the safety clamp to clamp the guide rail; When the trigger lever releases the brake cable, the lifting assembly enables the safety clamp to release the guide rail.

[0004] Furthermore, the vertical frame includes vertical bars that extend along a first direction. The lifting component includes: The mounting base extends along the first direction and is fixedly connected to the vertical rod; A lifting plate is slidably mounted on the mounting base. One end of the lifting plate is fixedly connected to the safety clamp, and one side of the lifting plate is connected to the brake cable. The first spring is located on the other side of the lifting plate, with one end fixedly connected to the other side of the lifting plate and the other end fixedly connected to the mounting base.

[0005] Furthermore, the mounting base is provided with a slide rail, which extends along a first direction; The lifting plate has a slider on the side near the vertical rod, the slider has a groove, and the slide rail is located in the groove.

[0006] Furthermore, the vertical frame also includes a crossbar that extends along a second direction and is fixedly connected to the vertical bar. The safety clamp is fixedly mounted on the crossbar, and the crossbar has a first through hole that penetrates the crossbar along a first direction. The triggering component includes: A screw extends along a first direction and is disposed in the first through hole; A sleeve is disposed on one side of the crossbar and fitted with the screw. The end of the sleeve facing away from the crossbar is fixedly connected to the screw. A gap is provided between the end of the sleeve near the crossbar and the crossbar, and the size of the gap is adjustable. A nut is located on the side of the sleeve opposite to the crossbar and is fixedly connected to the screw. The trigger rod is sleeved on the screw and is located between the sleeve and the nut; A second spring is disposed in the sleeve and fitted with the screw. One end of the second spring abuts against the end of the sleeve away from the crossbar, and the other end abuts against the crossbar. A connecting part is provided on the other side of the crossbar and is fixedly connected to the screw rod. The connecting part is used to connect the wire rope.

[0007] Furthermore, the end of the sleeve opposite to the crossbar is threadedly connected to the screw; and / or, the trigger rod is threadedly connected to the screw; The triggering component also includes: A flat washer is disposed between the trigger rod and the nut; An elastic washer is disposed between the flat washer and the nut.

[0008] Furthermore, the connecting part is U-shaped, and the opening of the U-shaped connecting part is away from the crossbar. The connecting part includes a first side plate, a bottom plate, and a second side plate that are fixedly connected in sequence. The base plate is provided with a first internal thread, and the screw is threadedly connected to the first internal thread; The first side plate and the second side plate are provided with a second through hole. The triggering component also includes a pin that passes through the second through hole and is wound around a wire rope.

[0009] Furthermore, the pin is provided with two third through holes, any one of which penetrates the pin radially. The triggering component further includes two cotter pins, one of which passes through a third through hole; One of the cotter pins is located on the side of the first side plate opposite to the second side plate, and the other cotter pin is located on the side of the second side plate opposite to the first side plate.

[0010] Furthermore, the triggering component also includes: A wire rope sling is provided in the U-shaped connecting part. The wire rope sling has an annular groove and a fourth through hole. The annular groove is connected along the outer side of the wire rope sling and is used for winding the wire rope. The fourth through hole passes through the wire rope collar and communicates with the second through hole; the pin passes through the fourth through hole. Wire rope clamps are used to clamp wire ropes.

[0011] Furthermore, the screw has a flat surface; A protective plate is fixedly connected to the side of the crossbar near the connecting part. The protective plate is provided with a fifth through hole, which includes a flat part. The screw passes through the fifth through hole, and the plane corresponds to the planar portion.

[0012] Furthermore, the crossbar is provided with a connecting tube, and / or the end of the mounting base opposite to the first spring is provided with a connecting tube; One end of the brake cable is fixedly connected to the trigger rod, and the other end passes through the connecting tube and is fixedly connected to one side of the lifting plate.

[0013] The beneficial effects of the technical solution provided by this utility model embodiment are: This utility model embodiment connects a wire rope to a trigger rod, the trigger rod to a lifting assembly via a brake cable, and the lifting assembly to a safety clamp. This allows for rapid fault identification and intervention, reducing downtime and braking time, improving the safety of the stacker crane, and effectively preventing the loading platform or goods from falling when the wire rope breaks or slacks, thus avoiding equipment damage and personal injury, and reducing production interruption time. Furthermore, this utility model embodiment has a simple structure and avoids mechanical structures (such as guide rails and motors) from being subjected to impact or overload due to rope problems, thereby extending equipment life and reducing subsequent maintenance costs. Attached Figure Description

[0014] Figure 1 This is a front view of the protection device for the stacker crane in the embodiment of this utility model, which protects against loose or broken ropes.

[0015] Figure 2 This is a schematic diagram of the protective device for the stacker crane in the embodiment of this utility model, which prevents the rope from becoming loose or broken.

[0016] Figure 3 This is a front view of the lifting assembly and safety clamp in an embodiment of this utility model.

[0017] Figure 4 This is the main view of the triggering component in this embodiment of the utility model. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0019] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] This utility model embodiment provides a protection device for stacker cranes in case of slack or broken ropes, including: Vertical frame 1, Triggering component 2, disposed on the vertical frame 1 and used to connect the steel wire rope, the triggering component 2 includes trigger rod 21; Safety clamp 3 is mounted on the vertical frame 1 and is used to clamp or release the guide rail. The lifting assembly 4 is slidably disposed on the vertical frame 1 along the first direction A, and the lifting assembly 4 is connected to the safety clamp 3; Brake cable 5, one end of which is connected to the trigger rod 21 and the other end of which is connected to the lifting assembly 4. The trigger rod 21 can tighten or loosen the brake cable 5; When the trigger rod 21 pulls the brake cable 5, the lifting assembly 4 enables the safety clamp 3 to clamp the guide rail. When the trigger rod 21 releases the brake line 5, the lifting assembly 4 enables the safety clamp 3 to release the guide rail.

[0023] In a specific embodiment, such as Figure 1 , Figure 2 As shown, the trigger assembly 2 is connected to the lower end of the wire rope, the safety clamp 3 is provided in the middle of the vertical frame 1, the lifting assembly 4 is provided on the right side, and the lifting assembly 4 is slidably arranged on the vertical frame 1 in the up and down direction. The left end of the brake line 5 is connected to the trigger rod 21 in the trigger assembly 2, and the right end is connected to the lifting assembly 4.

[0024] When goods are placed on the loading platform and the wire rope is taut, the trigger component 2 will move upward and the trigger rod 21 will move upward. At this time, the brake line 5 will be relaxed, and the lifting component 4 and the safety clamp 3 will also be relaxed. The safety clamp 3 will not clamp the guide rail. When goods fall off the loading platform, causing the wire rope to become slack or break, the trigger rod 21 in the trigger assembly 2 moves downward, causing the left end of the brake line 5 to move downward. At this time, the brake line 5 is in a taut state. Since the right end of the brake line 5 is connected to the lifting plate 42 and the lifting assembly 4 is connected to the safety clamp 3, the brake line 5 can be taut and lift the lifting assembly 4. When the lifting assembly 4 moves upward, it causes the safety clamp 3 to move upward. At this time, the wedge block in the safety clamp 3 moves upward and clamps the guide rail, so that the loading platform is stuck on the guide rail and completes the braking. This structure is simple and can protect the stacker crane.

[0025] It should be noted that the specific configuration of the lifting plate 42 is not limited. The lifting plate 42 can be set in a straight line or bent. The specific configuration of the lifting plate 42 can be adapted to actual needs so as to facilitate fixed connection with the safety clamp 3.

[0026] Furthermore, the vertical frame 1 includes a vertical rod 11 extending along a first direction A. The lifting component 4 includes: Mounting base 41 extends along the first direction A and is fixedly connected to the vertical rod 11; A lifting plate 42 is slidably mounted on the mounting base 41. One end of the lifting plate 42 is fixedly connected to the safety clamp 3, and one side of the lifting plate 42 is connected to the brake cable 5. The first spring 43 is located on the other side of the lifting plate 42, with one end fixedly connected to the other side of the lifting plate 42 and the other end fixedly connected to the mounting base 41.

[0027] In a specific embodiment, such as Figure 3 As shown, the mounting base 41 extends in the vertical direction and is fixedly connected to the vertical rod 11. The lifting plate 42 slides in the vertical direction, with its upper side fixedly connected to the brake line 5, its left end fixedly connected to the safety clamp 3, and its lower side fixedly connected to the upper end of the first spring 43. The lower end of the first spring 43 is fixedly connected to the lower end of the mounting base 41.

[0028] When the stacker crane is operating normally, the first spring 43 can prevent the lifting plate 42 from swaying, thereby preventing the safety clamp 3 from being accidentally triggered when it moves up and down with the vertical frame 1. When the wire rope is slack or broken, the trigger rod 21 pulls the brake line 5 downward, causing the lifting plate 42 to move upward. Since the left end of the lifting plate 42 is connected to the safety clamp 3, the lifting plate 42 can drive the safety clamp 3 to move upward, thereby clamping the guide rail. Also, since the first spring 43 is provided between the lower side of the lifting plate 42 and the mounting base 41, the second spring 25 is in an extended state and has a tendency to return to its original state while the lifting plate 42 moves upward. When the wire rope is tightened again, the brake line 5 is relaxed. At this time, the second spring 25 returns to its original state and drives the lifting plate 42 to move downward, thereby driving the safety clamp 3 to move downward and release the guide rail.

[0029] The lifting plate 42 is slidably connected to the mounting base 41. The sliding connection method is not limited. In a specific embodiment, the mounting base 41 is provided with a slide rail 44, which extends along the first direction A. The lifting plate 42 is provided with a slider on the side near the vertical rod 11. The slider is provided with a groove, and the slide rail 44 is provided in the groove.

[0030] In another specific embodiment, the mounting base 41 is provided with a slide rail 44, the lifting plate 42 is provided with a through hole, the slide rail 44 extends along the first direction A and is provided in the through hole, and the lifting plate 42 can also slide along the slide rail 44.

[0031] This application does not limit the specific configuration of the trigger component 2. In a specific embodiment, the vertical frame 1 further includes a crossbar 12, which extends along the second direction B and is fixedly connected to the vertical bar 11. The safety clamp 3 is fixedly mounted on the crossbar 12. The crossbar 12 is provided with a first through hole, which penetrates the crossbar 12 along the first direction A. The triggering component 2 includes: The screw 22 extends along the first direction A and is disposed in the first through hole; A sleeve 23 is disposed on one side of the crossbar 12 and fitted with the screw 22. The end of the sleeve 23 facing away from the crossbar 12 is fixedly connected to the screw 22. A gap is provided between the end of the sleeve 23 near the crossbar 12 and the crossbar 12, and the size of the gap is adjustable. Nut 24 is located on the side of sleeve 23 away from crossbar 12 and is fixedly connected to screw 22; The trigger rod 21 is sleeved on the screw 22 and is located between the sleeve 23 and the nut 24; The second spring 25 is disposed in the sleeve 23 and the screw 22 is sleeved thereon. One end of the second spring 25 abuts against the end of the sleeve 23 away from the cross bar 12, and the other end abuts against the cross bar 12. A connecting part 26 is provided on the other side of the crossbar 12 and is fixedly connected to the screw 22. The connecting part 26 is used to connect the wire rope.

[0032] In a specific embodiment, such as Figure 4 As shown, the crossbar 12 is provided with the first through hole, which penetrates the crossbar 12 in the vertical direction. The screw 22 extends in the vertical direction and is disposed in the first through hole. The sleeve 23 is disposed on the lower side of the crossbar 12 and is fixedly connected to the lower end of the screw 22. The connecting part 26 is disposed on the upper side of the crossbar 12 and is fixedly connected to the upper end of the screw 22.

[0033] The connecting part 26 is connected to the wire rope. When the wire rope is taut, it can drive the connecting part 26 to move upward. Since the upper end of the screw 22 is fixedly connected to the connecting part 26 and the lower end is fixedly connected to the sleeve 23 and the trigger rod 21, the connecting part 26 can drive the screw 22, the sleeve 23, and the trigger rod 21 to move upward. At this time, the brake line 5 is in a relaxed state, and the spring in the sleeve 23 is compressed and has a tendency to return to its original shape. The gap between the upper end of the sleeve 23 and the crossbar 12 becomes smaller. When the wire rope becomes loose or breaks, the second spring 25 returns to its original state and drives the sleeve 23 to move downward. In turn, the sleeve 23 drives the screw 22, the trigger rod 21, and the connecting part 26 to move downward and tighten the brake line 5. At the same time, the gap between the upper end of the sleeve 23 and the crossbar 12 increases.

[0034] During installation, first, the screw 22 is passed through the first through hole of the crossbar 12. The second spring 25 is then sleeved onto the screw 22 from the lower end upwards. Next, the sleeve 23 is sleeved onto the lower end of the screw 22 and the second spring 25, so that the sleeve 23 is connected and fixed to the screw 22. Then, one end of the trigger rod 21 is sleeved onto the screw 22, and the trigger rod 21 is fixed with the nut 24.

[0035] This application may provide two trigger components 2, each of which is fixedly connected to one side of the crossbar 12 and connected to a steel wire rope. The safety clamp 3 is fixedly connected to the crossbar 12 and is located between the two trigger components 2. When either steel wire rope breaks or becomes loose, the trigger component 2 can activate the safety clamp 3.

[0036] In the trigger assembly 2, the sleeve 23 is fixedly connected to the lower end of the screw 22, and the trigger rod 21 is fixedly connected to the lower end of the screw 22. In one embodiment, the lower end of the sleeve 23, the trigger rod 21, and the screw 22 are welded together; in another embodiment, the end of the sleeve 23 facing away from the crossbar 12 is threadedly connected to the screw 22; and / or, the trigger rod 21 is threadedly connected to the screw 22. The triggering component 2 also includes: A flat washer 271 is disposed between the trigger rod 21 and the nut 24; An elastic washer 272 is disposed between the flat washer 271 and the nut 24.

[0037] In this embodiment, such as Figure 4 As shown, during installation, the sleeve 23 and the trigger rod 21 are sequentially fitted onto the screw 22. The sleeve 23 is rotated to fix the connection between the sleeve 23 and the screw 22. Then, the trigger rod 21 is rotated to fix the connection between the trigger rod 21 and the screw 22. Next, the flat washer 271 and the elastic washer 272 are sequentially fitted onto the lower end of the screw 22. Finally, the nut 24 is fitted onto the screw 22 and tightened, thus fixing the connection between the sleeve 23, the trigger rod 21, the flat washer 271, the elastic washer 272, and the screw 22. One or two nuts 24 can be provided to ensure the structural stability of the trigger assembly 2.

[0038] Furthermore, the connecting part 26 is U-shaped, and the opening of the U-shaped connecting part 26 is away from the crossbar 12. The connecting part 26 includes a first side plate, a bottom plate, and a second side plate that are fixedly connected in sequence. The base plate is provided with a first internal thread, and the screw 22 is threadedly connected to the first internal thread; The first side plate and the second side plate are provided with a second through hole. The triggering component 2 also includes a pin 28, which passes through the second through hole and is used for winding the wire rope.

[0039] like Figure 4 As shown, the opening of the U-shaped connecting part 26 faces upward, and the pin 28 is disposed in the U-shaped connecting part 26. The lower end of the wire rope is wound around the pin 28. When the loading platform carries goods and the wire rope is in a taut state, the wire rope can drive the pin 28 to move upward. Since the pin 28 passes through the second through hole on the first side plate and the second side plate, when the pin 28 moves upward, it drives the first side plate and the second side plate to move upward, that is, it drives the connecting part 26 to move upward. Also, since the screw 22 is threadedly connected to the first internal thread on the base plate, when the connecting part 26 moves upward, it can drive the screw 22 to move upward. The screw 22 drives the sleeve 23 to move upward, and causes the second spring 25 to be in a compressed state.

[0040] Similarly, when the wire rope is slack or broken, the second spring 25 returns to its original state and drives the sleeve 23 to move downward. The sleeve 23 drives the screw 22, the connecting part 26, and the pin 28 to move downward.

[0041] During installation, firstly, the upper end of the screw 22 is threaded to the base plate of the connecting part 26, and the end of the wire rope is placed in the connecting part 26. Then, the pin 28 is passed from right to left through the second through hole on the first side plate, the end of the wire rope, and the second through hole on the second side plate to complete the installation of the connecting part 26. Secondly, the screw 22 is inserted downward into the first through hole of the crossbar 12. Finally, the spring, the sleeve 23, the trigger rod 21, the nut 24, the flat washer 271, and the elastic washer 272 are installed on the lower end of the screw 22.

[0042] Furthermore, the pin 28 is provided with two third through holes, and either of the third through holes penetrates the pin 28 radially. The trigger component 2 also includes two cotter pins 281, with any one of the cotter pins 281 penetrating through a third through hole; One of the cotter pins 281 is located on the side of the first side plate away from the second side plate, and the other cotter pin 281 is located on the side of the second side plate away from the first side plate.

[0043] In a specific embodiment, such as Figure 4As shown, a cotter pin 281 is provided on the outer side of the first side plate and the outer side of the second side plate, and any one of the cotter pins 281 passes through the third through hole of the pin 28. This structure can prevent the pin 28 from moving along the axial direction of the pin 281 and prevent the pin 28 from scratching out of the connecting part 26.

[0044] Furthermore, the triggering component 2 also includes: A wire rope sling 291 is provided in the U-shaped connecting part 26. The wire rope sling 291 is provided with an annular groove and a fourth through hole. The annular groove is connected along the outer side of the wire rope sling 291 and is used for winding the wire rope. The fourth through hole passes through the wire rope collar 291 and communicates with the second through hole; the pin 28 passes through the fourth through hole. Wire rope clamp 292 is used to clamp wire rope.

[0045] In a specific embodiment, such as Figure 4 As shown, during installation, the lower end of the wire rope is wrapped around the annular groove on the outside of the wire rope sling 291, and the tail section of the wire rope is clamped by the wire rope clamp 292. Then, the wire rope sling 291 with the wire rope wrapped around it is placed in the connecting part 26, so that the fourth through hole on the wire rope sling 291 is connected to the second through hole on the first side plate and the second side plate. Finally, the pin 28 is passed through the second through hole and the fourth through hole in sequence, so that the connecting part 26 is connected and fixed to the end of the wire rope. The wire rope sling 291 and the wire rope clamp 292 ensure the stability of the structure and avoid wear on the end of the wire rope.

[0046] Furthermore, the screw 22 is provided with a flat surface; A protective plate 121 is fixedly connected to the side of the crossbar 12 near the connecting part 26. The protective plate 121 is provided with a fifth through hole, which includes a flat part. The screw 22 passes through the fifth through hole, and the plane corresponds to the planar portion.

[0047] In one specific embodiment, the screw 22 is provided with a plane. During installation, the screw 22 is rotated so that the plane corresponds to the plane portion of the fifth through hole. This structural design prevents the screw 22 from rotating during operation and ensures the stability of the stacker crane's rope slack or rope breakage protection device.

[0048] Furthermore, the crossbar 12 is provided with a connecting tube 6, and / or the mounting base 41 is provided with a connecting tube 6 at the end opposite to the first spring 43; One end of the brake line 5 is fixedly connected to the trigger rod 21, and the other end passes through the connecting tube 6 and is fixedly connected to one side of the lifting plate 42.

[0049] In a specific embodiment, such as Figure 4 As shown, the upper ends of the crossbar 12 and the mounting base 41 are both provided with the connecting pipe 6. The connecting pipe 6 facilitates the assembly of the brake line 5, prevents the brake line 5 from being accidentally tightened, improves the safety of the stacker crane's slack or broken rope protection device, and also prevents the brake line 5 from being worn, thus increasing the service life of the stacker crane's slack or broken rope protection device.

[0050] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A protective device for stacker cranes in case of slack or broken ropes, characterized in that, include: Vertical frame (1) A trigger assembly (2) is disposed on the vertical frame (1) and used to connect the wire rope. The trigger assembly (2) includes a trigger rod (21). Safety clamp (3), mounted on the vertical frame (1), is used to clamp or release the guide rail; The lifting assembly (4) is slidably disposed on the vertical frame (1) along the first direction (A), and the lifting assembly (4) is connected to the safety clamp (3); Brake cable (5), one end of which is connected to the trigger rod (21) and the other end is connected to the lifting assembly (4). The trigger rod (21) can tighten or loosen the brake cable (5); When the trigger rod (21) pulls the brake line (5), the lifting assembly (4) enables the safety clamp (3) to clamp the guide rail; When the trigger rod (21) releases the brake line (5), the lifting assembly (4) enables the safety clamp (3) to release the guide rail.

2. The protection device for slack or broken ropes on a stacker crane as described in claim 1, characterized in that, The vertical frame (1) includes vertical bars (11) that extend along a first direction (A). The lifting component (4) includes: Mounting base (41) extends along the first direction (A) and is fixedly connected to the vertical rod (11); A lifting plate (42) is slidably mounted on the mounting base (41). One end of the lifting plate (42) is fixedly connected to the safety clamp (3), and one side of the lifting plate (42) is connected to the brake cable (5). The first spring (43) is located on the other side of the lifting plate (42), with one end fixedly connected to the other side of the lifting plate (42) and the other end fixedly connected to the mounting base (41).

3. The protection device for slack or broken ropes on a stacker crane as described in claim 2, characterized in that, The mounting base (41) is provided with a slide rail (44) which extends along a first direction (A); The lifting plate (42) has a slider on the side near the vertical rod (11), the slider has a groove, and the slide rail (44) is located in the groove.

4. The protection device for slack or broken ropes on a stacker crane as described in claim 2, characterized in that, The vertical frame (1) also includes a crossbar (12), which extends along the second direction (B) and is fixedly connected to the vertical bar (11). The safety clamp (3) is fixedly mounted on the crossbar (12). The crossbar (12) is provided with a first through hole, which passes through the crossbar (12) along the first direction (A). The triggering component (2) includes: A screw (22) extends along a first direction (A) and is disposed in the first through hole; A sleeve (23) is provided on one side of the crossbar (12) and the screw (22) is fitted onto it. The end of the sleeve (23) away from the crossbar (12) is fixedly connected to the screw (22). There is a gap between the end of the sleeve (23) near the crossbar (12) and the crossbar (12). The size of the gap is adjustable. Nut (24) is located on the side of the sleeve (23) away from the crossbar (12) and is fixedly connected to the screw (22); The trigger rod (21) is sleeved on the screw (22) and located between the sleeve (23) and the nut (24); The second spring (25) is disposed in the sleeve (23) and fitted with the screw (22). One end of the second spring (25) abuts against the end of the sleeve (23) away from the cross bar (12), and the other end abuts against the cross bar (12). A connecting part (26) is provided on the other side of the crossbar (12) and is fixedly connected to the screw (22). The connecting part (26) is used to connect the wire rope.

5. The protection device for slack or broken ropes on a stacker crane as described in claim 4, characterized in that, The sleeve (23) is threaded to the screw (22) at one end away from the crossbar (12); and / or, the trigger rod (21) is threaded to the screw (22); The triggering component (2) further includes: A flat washer (271) is disposed between the trigger rod (21) and the nut (24); An elastic washer (272) is disposed between the flat washer (271) and the nut (24).

6. The protection device for slack or broken ropes on a stacker crane as described in claim 4, characterized in that, The connecting part (26) is U-shaped, and the opening of the U-shaped connecting part (26) is away from the crossbar (12). The connecting part (26) includes a first side plate, a bottom plate, and a second side plate that are fixedly connected in sequence. The base plate is provided with a first internal thread, and the screw (22) is threadedly connected to the first internal thread; The first side plate and the second side plate are provided with a second through hole. The triggering component (2) also includes a pin (28) which passes through the second through hole and is used for winding the wire rope.

7. The protection device for slack or broken ropes on a stacker crane as described in claim 6, characterized in that, The pin (28) is provided with two third through holes, and either of the third through holes penetrates the pin (28) radially. The trigger component (2) further includes two cotter pins (281), any one of the cotter pins (281) passing through a third through hole; One of the cotter pins (281) is located on the side of the first side plate away from the second side plate, and the other cotter pin (281) is located on the side of the second side plate away from the first side plate.

8. The protection device for slack or broken ropes on a stacker crane as described in claim 6, characterized in that, The triggering component (2) further includes: A wire rope sling (291) is provided in the U-shaped connecting part (26). The wire rope sling (291) is provided with an annular groove and a fourth through hole. The annular groove is connected along the outer side of the wire rope sling (291) and is used for the wire rope to be wound. The fourth through hole passes through the wire rope collar (291) and communicates with the second through hole, and the pin (28) passes through the fourth through hole; Wire rope clamp (292) is used to clamp wire rope.

9. The protection device for slack or broken ropes on a stacker crane as described in claim 4, characterized in that, The screw (22) has a flat surface; A protective plate (121) is fixedly connected to the side of the crossbar (12) near the connecting part (26). The protective plate (121) is provided with a fifth through hole, which includes a flat part. The screw (22) passes through the fifth through hole, and the plane corresponds to the planar portion.

10. The protection device for slack or broken ropes on a stacker crane as described in claim 4, characterized in that, The crossbar (12) is provided with a connecting tube (6), and / or the mounting base (41) is provided with a connecting tube (6) at one end away from the first spring (43). One end of the brake line (5) is fixedly connected to the trigger rod (21), and the other end passes through the connecting tube (6) and is fixedly connected to one side of the lifting plate (42).

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