Safety harness quick change device and method of use

Abstract

The present application relates to a kind of safe rope quick conversion device and its use method, comprising: auxiliary plate, with sliding slot, first special-shaped slot, second special-shaped slot, through opening slot and first safety rope;Slide column is slidably connected in sliding slot, and its surface has second safety rope;First link component is located in first special-shaped slot and through opening slot, and with the second special-shaped slot on adjacent auxiliary plate matching;Second link component is located in second special-shaped slot and through opening slot, and with the first special-shaped slot on adjacent auxiliary plate matching;Wherein, the sliding slot extends to the free end of auxiliary plate, the first special-shaped slot is located in one end of auxiliary plate, the second special-shaped slot is located in the other end of auxiliary plate, when two adjacent auxiliary plates are docked to form an integral, the slide column in one auxiliary plate can be moved to the sliding slot of adjacent auxiliary plate.The present application can complete the conversion of second safety rope when two people stagger position by docking adjacent auxiliary plate, simple operation, ensure safe and reliable.

Description

Technical Field

[0001] This invention relates to the field of seat belt hooks, and in particular to a quick-change device for safety ropes and its method of use. Background Technology

[0002] When working at heights, it is common practice for one person to carry two hooks. When two people are in staggered positions, one hook must be removed first, and then the hooks are hung alternately. Then the remaining hook must be removed and hung alternately. The operation is cumbersome and therefore needs to be improved. Summary of the Invention

[0003] Therefore, it is necessary to provide a safety rope quick-change device and its usage method to address the problem that when working at heights, the method of one person carrying two hooks is usually adopted, and the hook position switching steps when two people are in staggered positions are cumbersome.

[0004] The present invention provides a quick-change device for a safety lanyard, comprising:

[0005] The auxiliary plate has a sliding groove, a first irregular groove, a second irregular groove, a through groove, and a first safety rope;

[0006] The sliding column is slidably connected in the sliding groove, and its surface has a second safety rope;

[0007] The first connecting component is located in the first irregular groove and the through groove, and matches the second irregular groove on the adjacent auxiliary plate, and is used to fix the adjacent auxiliary plate.

[0008] The second connecting component is located in the second irregular groove and the through groove, and matches the first irregular groove on the adjacent auxiliary plate, and is used to fix the adjacent auxiliary plate.

[0009] The groove extends to the free end of the auxiliary plate. The first irregular groove is located at one end of the auxiliary plate, and the second irregular groove is located at the other end of the auxiliary plate. When two adjacent auxiliary plates are joined together to form a whole, the sliding column in one auxiliary plate can move into the groove of the adjacent auxiliary plate.

[0010] In one embodiment, the longitudinal section of the chute is a T-shaped chute or an earth-shaped chute, and the cross section of the chute is U-shaped.

[0011] In one embodiment, both the first connecting component and the second connecting component include a rotating shaft rotatably connected to the auxiliary plate. Both ends of the rotating shaft extend out of the auxiliary plate. A baffle is fixedly connected to the outer wall of the rotating shaft. A first limiting plate is fixedly connected to one end of the rotating shaft. A pressure plate is fixedly connected to the other end of the rotating shaft on the first connecting component. A second limiting plate is fixedly connected to the other end of the rotating shaft on the second connecting component. A torsion spring is fixedly connected between the pressure plate, the first limiting plate, and the second limiting plate and the auxiliary plate. The first connecting component also includes a clamping plate fixed to the outer wall of the rotating shaft. The second connecting component also includes a limiting post fixed to the bottom of the auxiliary plate.

[0012] In one embodiment, both the first irregular groove and the second irregular groove include a first groove, a second groove, and a baffle groove. The first groove and the second groove are perpendicular to each other. The second groove is located at the end of the auxiliary plate. The first groove and the baffle groove are both connected to the slide groove. The first groove and the second groove are connected to each other. The second irregular groove also includes a retaining plate groove. The first groove and the second groove are both connected to the retaining plate groove.

[0013] In one embodiment, the rotating shaft is located in a first groove, and the card plate is located in a second groove.

[0014] In one embodiment, when the torsion spring is in its natural state, the free end of the baffle extends into the groove.

[0015] In one embodiment, when the baffle is located in the baffle groove, the slide can move to the free end of the auxiliary plate.

[0016] In one embodiment, the angle between the baffle and the clamping plate is an obtuse angle, the angle between the baffle and the pressure plate is an obtuse angle, and the angle between the clamping plate and the pressure plate is an acute angle.

[0017] In one embodiment, a support plate is fixedly connected to the side wall of the baffle, and when the torsion spring is in its natural state, the support plate abuts against the inner wall of the auxiliary plate.

[0018] In one embodiment, the free end of the limiting post is fixedly connected to a limiting disk, the outer diameter of the limiting disk is larger than the outer diameter of the limiting post, and the limiting disk is located below the adjacent first limiting plate.

[0019] The aforementioned quick-change safety rope device allows for easy switching between two workers in staggered positions during high-altitude operations. Simply align adjacent auxiliary plates to form a single unit. During this process, the first connecting component engages with the second groove on the adjacent auxiliary plate, and the second connecting component engages with the first groove on the adjacent auxiliary plate, enabling the adjacent auxiliary plates to form a single unit. When two adjacent auxiliary plates are aligned, a sliding column within one auxiliary plate can move into the groove of the adjacent auxiliary plate, facilitating the switching of the second safety rope when the two workers are in staggered positions. Workers only need to carry one quick-change hook to achieve rapid switching when two workers are in staggered positions. The device is simple to operate and convenient to use. Because the sliding column always slides within the auxiliary plate during the switching process, the worker and the safety work platform are always connected by the first and second safety ropes, ensuring safety and reliability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this 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 some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a first-view structural schematic diagram of a safety lanyard quick-change device in one embodiment;

[0022] Figure 2 for Figure 1 A schematic diagram of the AA cross-sectional structure in the diagram;

[0023] Figure 3 for Figure 1 Schematic diagram of the BB cross-sectional structure in the middle;

[0024] Figure 4 This is a second-view structural schematic diagram of a safety lanyard quick-change device in one embodiment;

[0025] Figure 5 This is a schematic diagram of the structure of the first connecting component in one embodiment;

[0026] Figure 6 This is a first-view structural diagram of two adjacent safety lanyard quick-change devices after docking in one embodiment.

[0027] Figure 7 This is a second-view structural diagram of the quick-change devices for adjacent safety ropes after docking in one embodiment.

[0028] Figure label:

[0029] 100. Auxiliary plate; 110. Slide groove; 120. First safety rope; 130. First irregular groove; 140. Second irregular groove; 150. First groove; 160. Second groove; 170. Baffle groove; 180. Carding plate groove; 190. Through groove; 200. Sliding column; 210. Second safety rope; 300. First connecting assembly; 310. Rotating shaft; 320. Baffle; 330. Pressure plate; 340. First limiting plate; 350. Torsion spring; 360. Carding plate; 370. Support plate; 400. Second connecting assembly; 410. Limiting disc; 420. Limiting post; 430. Second limiting plate. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0035] The following is combined with Figures 1-7 The present invention describes a quick-change safety lanyard device and its method of use.

[0036] like Figure 1 and Figure 4 As shown, in one embodiment, a safety lanyard quick conversion device includes an auxiliary plate 100, a slide post 200, a first connecting component 300, and a second connecting component 400.

[0037] The auxiliary plate 100 has a sliding groove 110, a first irregular groove 130, a second irregular groove 140, a through groove 190, and a first safety rope 120.

[0038] The slide column 200 is slidably connected in the slide groove 110, and the surface of the slide column 200 has a second safety rope 210.

[0039] It should be noted that the first safety rope 120 is fixed to the safety rope by a hook, and the second safety rope 210 is fixed to the safety belt worn by the worker.

[0040] When the free end of the first safety rope 120 is fixed to the safety pole for high-altitude work, the free end of the second safety rope 210 is fixed to the high-altitude worker, and vice versa.

[0041] The first connecting component 300 is located within the first irregular groove 130 and the through groove 190. The first connecting component 300 matches the second irregular groove 140 on the adjacent auxiliary plate 100, and the first connecting component 300 is used to fix the adjacent auxiliary plate 100.

[0042] It should be noted that, see [link / reference] Figure 1 The through groove 190 is the opening in the middle of the U-shaped auxiliary plate 100.

[0043] The second connecting component 400 is located within the second irregular groove 140 and the through groove 190. The second connecting component 400 matches the first irregular groove 130 on the adjacent auxiliary plate 100, and the second connecting component 400 is used to fix the adjacent auxiliary plate 100.

[0044] The slide groove 110 extends to the free end of the auxiliary plate 100, the first irregular groove 130 is located at one end of the auxiliary plate 100, and the second irregular groove 140 is located at the other end of the auxiliary plate 100. When two adjacent auxiliary plates 100 are joined together to form a whole, the slide column 200 in one auxiliary plate 100 can move into the slide groove 110 of the adjacent auxiliary plate 100.

[0045] This quick-change safety rope device allows for easy switching between two workers in staggered positions during high-altitude operations. Adjacent auxiliary plates 100 are simply joined together to form a single unit. During this process, the first connecting component 300 engages with the second irregular groove 140 on the adjacent auxiliary plate 100, and the second connecting component 400 engages with the first irregular groove 130 on the adjacent auxiliary plate 100. When two adjacent auxiliary plates 100 are joined together, the sliding column 200 within one auxiliary plate 100 can move into the sliding groove 110 of the adjacent auxiliary plate 100, thus enabling the switching of the second safety rope 210 when the two workers are in staggered positions. Workers only need to carry one quick-change hook to achieve rapid switching when two workers are in staggered positions. The device is simple to operate and convenient to use. Because the sliding column 200 always slides within the auxiliary plate 100 during the switching process, the worker and the safety work platform are always connected by the first safety rope 120 and the second safety rope 210, ensuring safety and reliability.

[0046] In this embodiment, the longitudinal section of the chute 110 is a T-shaped groove or an earth-shaped groove, and the cross section of the chute 110 is U-shaped. This ensures that the sliding column 200 remains within the auxiliary plate 100 when the worker is working at height. Furthermore, the sliding connection between the sliding column 200 and the auxiliary plate 100 allows the conversion hook to automatically adjust the angle of the second safety rope 210 according to the worker's working environment.

[0047] In this embodiment, see Figure 4 and Figure 5 Both the first connecting component 300 and the second connecting component 400 include a rotating shaft 310 rotatably connected to the auxiliary plate 100. Both ends of the rotating shaft 310 extend out of the auxiliary plate 100. A baffle 320 is fixedly connected to the outer wall of the rotating shaft 310. A first limiting plate 340 is fixedly connected to one end of the rotating shaft 310. A pressure plate 330 is fixedly connected to the other end of the rotating shaft 310 on the first connecting component 300. A second limiting plate 430 is fixedly connected to the other end of the rotating shaft 310 on the second connecting component 400. A torsion spring 350 is fixedly connected between the pressure plate 330, the first limiting plate 340, and the second limiting plate 430 and the auxiliary plate 100. The first connecting component 300 also includes a clamping plate 360 ​​fixed to the outer wall of the rotating shaft 310. The second connecting component 400 also includes a limiting post 420 fixed to the bottom of the auxiliary plate 100.

[0048] In this embodiment, see Figure 2 and Figure 3 The first irregular groove 130 and the second irregular groove 140 both include a first groove 150, a second groove 160 and a baffle groove 170. The first groove 150 and the second groove 160 are perpendicular to each other. The second groove 160 is located at the end of the auxiliary plate 100. The first groove 150 and the baffle groove 170 are both connected to the slide groove 110. The first groove 150 and the second groove 160 are connected to each other. The second irregular groove 140 also includes a retaining plate groove 180. The first groove 150 and the second groove 160 are both connected to the retaining plate groove 180.

[0049] It should be further explained that the rotating shaft 310 is located in the first groove 150 and the clamping plate 360 ​​is located in the second groove 160. In the natural state of the torsion spring 350, the clamping plate 360 ​​will not clamp into the clamping plate groove 180 on the adjacent auxiliary plate 100. The clamping plate 360 ​​will only be clamped into the clamping plate groove 180 on the adjacent auxiliary plate 100 after the pressure plate 330 is lifted by the limiting post 420 on the adjacent auxiliary plate 100. As soon as the pressure plate 330 is lifted by the limiting post 420, the clamping plate 360 ​​will be simultaneously and precisely clamped into the clamping plate groove 180 on the adjacent auxiliary plate 100.

[0050] When the sliding column 200 enters the interval of the first connecting component 300 or the second connecting component 400, the sliding column 200 presses down on the baffle 320, preventing the baffle 320 from rebounding. This keeps the locking plate 360 ​​locked in the locking plate groove 180 on the adjacent auxiliary plate 100, ensuring that the two auxiliary plates 100 cannot disengage. Only when both sliding columns 200 have completed their conversion and left the interval of the first connecting component 300 or the second connecting component 400 can the locking plate 360 ​​freely disengage from the locking plate groove 180, thus ensuring safety.

[0051] In this embodiment, when the torsion spring 350 is in its natural state, the free end of the baffle 320 extends into the slide groove 110, thereby preventing the slide column 200 from sliding out of the auxiliary plate 100 during high-altitude operations and ensuring operational safety.

[0052] It should be further explained that when the torsion spring 350 is in its natural state, the baffle 320 is tilted towards the sliding column 200, and the side of the baffle 320 away from the sliding column 200 abuts against the auxiliary plate 100. This ensures that when workers are working at height, the baffle 320 always hinders the movement of the sliding column 200, thereby preventing the sliding column 200 from separating from the auxiliary plate 100 and ensuring work safety.

[0053] In this embodiment, when the baffle 320 is located in the baffle groove 170, the slide groove 110 and the free end of the auxiliary plate 100 are connected, and the slide column 200 can move to the free end of the auxiliary plate 100, thereby facilitating the switching of the second safety rope 210.

[0054] In this embodiment, the angle between the baffle 320 and the clamping plate 360 ​​is an obtuse angle, the angle between the baffle 320 and the pressure plate 330 is an obtuse angle, and the angle between the clamping plate 360 ​​and the pressure plate 330 is an acute angle.

[0055] During the rotation of the pressure plate 330, the baffle 320 and the clamping plate 360 ​​can rotate accordingly. When the pressure plate 330 comes into contact with the limiting post 420 of the adjacent auxiliary plate 100, the clamping plate 360 ​​is clamped in the clamping plate groove 180 of the adjacent auxiliary plate 100, and the baffle 320 is located in the baffle groove 170.

[0056] In this embodiment, a support plate 370 is fixedly connected to the side wall of the baffle 320. When the torsion spring 350 is in its natural state, the support plate 370 abuts against the inner wall of the auxiliary plate 100, thereby facilitating the restriction of the rotation angle of the baffle 320. When the torsion spring 350 is in its natural state, the baffle 320 can block the movement of the sliding column 200, preventing the sliding column 200 from moving out of the auxiliary plate 100 and ensuring safety during operation.

[0057] In this embodiment, the free end of the limiting post 420 is fixedly connected to the limiting disk 410. The outer diameter of the limiting disk 410 is larger than the outer diameter of the limiting post 420. The limiting disk 410 is located below the adjacent first limiting plate 340. On the one hand, this facilitates the fixing of the torsion spring 350 between the limiting disk 410 and the auxiliary plate 100. On the other hand, when the two auxiliary plates 100 are connected, the limiting disk 410 located at the bottom of the auxiliary plate 100 can support the pressure plate 330.

[0058] The present invention also provides a method for using a quick-change safety lanyard device, comprising the following steps:

[0059] Step S510, when workers are working at height, see Figure 1 , Figure 2 and Figure 3 When the torsion spring 350 is in its natural state, the free end of the baffle 320 inside the auxiliary plate 100 extends into the slide groove 110, and the baffle 320 is inclined towards the slide column 200. The support plate 370 abuts against the inner wall of the auxiliary plate 100. The baffle 320 always hinders the movement of the slide column 200, thereby preventing the slide column 200 from separating from the auxiliary plate 100 and ensuring operational safety.

[0060] Step S520, when the two people are in staggered positions, see Figure 6The free ends of the two auxiliary plates 100 are brought together. When the pressure plate 330 on the left auxiliary plate 100 touches the limiting post 420 on the right second connecting assembly 400, the pressure plate 330 on the left auxiliary plate 100 will automatically rotate clockwise. At the same time, when the pressure plate 330 on the right auxiliary plate 100 touches the limiting post 420 on the left second connecting assembly 400, the pressure plate 330 on the right auxiliary plate 100 will automatically rotate counterclockwise. Then move the two auxiliary plates 100 until the free ends of the two auxiliary plates 100 are in contact. During the movement of the two auxiliary plates 100, the pressure plate 330 is kept in contact with the limiting post 420 by the interaction of the limiting post 420 and the torsion spring 350.

[0061] In step S530, when the free ends of the two auxiliary plates 100 are attached, the baffle 320 on the left first connecting component 300 is hidden in the baffle groove 170, the slide groove 110 at the lower end of the left auxiliary plate 100 is open, the locking plate 360 ​​on the left first connecting component 300 is engaged in the locking plate groove 180 on the right second irregular groove 140, and the free end of the baffle 320 on the left second connecting component 400 still extends into the slide groove 110, preventing the sliding column 200 in the upper slide groove 110 of the left auxiliary plate 100 from moving from left to right.

[0062] In step S540, when the free ends of the two auxiliary plates 100 are attached, the baffle 320 on the right first connecting component 300 is hidden in the baffle groove 170, the slide groove 110 at the upper end of the right auxiliary plate 100 is open, the locking plate 360 ​​on the right first connecting component 300 is engaged in the locking plate groove 180 on the left second irregular groove 140, and the free end of the baffle 320 on the right second connecting component 400 still extends into the slide groove 110, preventing the sliding column 200 in the slide groove 110 at the lower end of the right auxiliary plate 100 from moving from right to left.

[0063] In step S550, the sliding column 200 in the left auxiliary plate 100 is moved from the lower end of the left auxiliary plate 100 to the right auxiliary plate 100. During this process, when the sliding column 200 moves to the baffle 320 on the right second connecting assembly 400, the sliding column 200 continues to move. Under the pushing action of the sliding column 200, the baffle 320 on the right second connecting assembly 400 rotates towards the baffle groove 170 until the sliding column 200 in the left auxiliary plate 100 is completely moved into the right auxiliary plate 100. Under the action of the torsion spring 350 on the right second connecting assembly 400, the baffle 320 on the right second connecting assembly 400 automatically returns to its original position, that is, the free end of the baffle 320 extends into the sliding groove 110, blocking the movement of the sliding column 200 in the right auxiliary plate 100.

[0064] In step S560, the sliding column 200 in the right auxiliary plate 100 is moved from the upper end of the right auxiliary plate 100 to the left auxiliary plate 100. During this process, when the sliding column 200 moves to the baffle 320 on the left second connecting assembly 400, the sliding column 200 continues to move. Under the pushing action of the sliding column 200, the baffle 320 on the left second connecting assembly 400 rotates towards the baffle groove 170 until the sliding column 200 in the right auxiliary plate 100 is completely moved into the left auxiliary plate 100. Under the action of the torsion spring 350 on the left second connecting assembly 400, the baffle 320 on the left second connecting assembly 400 automatically returns to its original position, that is, the free end of the baffle 320 extends into the sliding groove 110, blocking the movement of the sliding column 200 in the left auxiliary plate 100.

[0065] In step S570, when the sliding column 200 enters the interval of the first connecting component 300 or the second connecting component 400, the sliding column 200 presses down on the baffle 320, preventing the baffle 320 from rebounding. This keeps the locking plate 360 ​​locked into the locking plate groove 180 on the adjacent auxiliary plate 100, ensuring that the two auxiliary plates 100 cannot disengage. Only when both sliding columns 200 have completed their conversion and left the interval of the first connecting component 300 or the second connecting component 400 can the locking plate 360 ​​freely disengage from the locking plate groove 180, thereby realizing the interchange of the second safety rope 210 on the left auxiliary plate 100 and the second safety rope 210 on the right auxiliary plate 100. See [link to relevant documentation]. Figure 7 After the second safety rope 210 is swapped, manually pull the two auxiliary plates 100 to disengage them. As soon as the pressure plate 330 leaves the limit post 420, under the action of the torsion spring 350, the locking plate 360 ​​will simultaneously disengage from the locking plate groove 180 on the adjacent auxiliary plate 100, thereby realizing the rapid splicing and separation of the two safety rope quick conversion devices.

[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A quick-change device for a safety lanyard, characterized in that, include: The auxiliary plate has a sliding groove, a first irregular groove, a second irregular groove, a through groove, and a first safety rope; The sliding column is slidably connected in the sliding groove, and its surface has a second safety rope; The first connecting component is located in the first irregular groove and the through groove, and matches the second irregular groove on the adjacent auxiliary plate, and is used to fix the adjacent auxiliary plate. The second connecting component is located in the second irregular groove and the through groove, and matches the first irregular groove on the adjacent auxiliary plate, and is used to fix the adjacent auxiliary plate. The groove extends to the free end of the auxiliary plate, the first irregular groove is located at one end of the auxiliary plate, and the second irregular groove is located at the other end of the auxiliary plate. When two adjacent auxiliary plates are joined together to form a whole, the sliding column in one auxiliary plate can move into the groove of the adjacent auxiliary plate. Both the first connecting component and the second connecting component include a rotating shaft rotatably connected to the auxiliary plate. Both ends of the rotating shaft extend out of the auxiliary plate. A baffle is fixedly connected to the outer wall of the rotating shaft. A first limiting plate is fixedly connected to one end of the rotating shaft. A pressure plate is fixedly connected to the other end of the rotating shaft on the first connecting component. A second limiting plate is fixedly connected to the other end of the rotating shaft on the second connecting component. A torsion spring is fixedly connected between the pressure plate, the first limiting plate, and the second limiting plate and the auxiliary plate. The first connecting component also includes a clamping plate fixed to the outer wall of the rotating shaft. The second connecting component also includes a limiting post fixed to the bottom of the auxiliary plate. The first and second irregular grooves each include a first groove, a second groove, and a baffle groove. The first groove and the second groove are perpendicular to each other. The second groove is located at the end of the auxiliary plate. The first groove and the baffle groove are both connected to the slide groove. The first groove and the second groove are also connected to each other. The second irregular groove also includes a retaining plate groove. The first groove and the second groove are both connected to the retaining plate groove.

2. The safety lanyard quick-change device according to claim 1, characterized in that, The longitudinal section of the chute is a T-shaped chute or an earth-shaped chute, and the cross section of the chute is U-shaped.

3. The safety lanyard quick-change device according to claim 1, characterized in that, The rotating shaft is located in the first groove, and the card plate is located in the second groove.

4. The safety lanyard quick-change device according to claim 3, characterized in that, When the torsion spring is in its natural state, the free end of the baffle extends into the groove.

5. The safety lanyard quick-change device according to claim 4, characterized in that, When the baffle is located in the baffle groove, the sliding column can move to the free end of the auxiliary plate.

6. The safety lanyard quick-change device according to claim 5, characterized in that, The angle between the baffle and the clamping plate is an obtuse angle, the angle between the baffle and the pressure plate is an obtuse angle, and the angle between the clamping plate and the pressure plate is an acute angle.

7. The safety lanyard quick-change device according to any one of claims 1 to 6, characterized in that, A support plate is fixedly connected to the side wall of the baffle. When the torsion spring is in its natural state, the support plate abuts against the inner wall of the auxiliary plate.

8. The safety lanyard quick-change device according to claim 7, characterized in that, The free end of the limiting post is fixedly connected to a limiting disk, the outer diameter of the limiting disk is larger than the outer diameter of the limiting post, and the limiting disk is located below the adjacent first limiting plate.

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