Derailing lock for guide rail falling protector and working method thereof

Abstract

The invention discloses a derailing lock for a guide rail falling protector and a working method thereof.The derailing lock for the guide rail falling protector is arranged at the end position of a guide rail and comprises a clamping block body, a screw, a lock nut, a blocking piece, a torsional spring and a blocking pin, the cross section of the clamping block body is of a U-shaped structure with an upward opening, and a clamping groove matched with a bottom plate of the guide rail is formed in the upper portion of the U-shaped structure; a through hole is formed in the middle of the side wall of the clamping block body, a groove is formed in the bottom of the end of the guide rail, a screw penetrates through the hole and the groove, and the extending end of the screw is limited and locked through a lock nut. The blocking piece is close to a bolt head of the screw, one end of the torsional spring is fixed to the blocking piece, and the other end of the torsional spring is fixed to the side wall of the clamping block body. The long arm end of the blocking piece is located in the direction perpendicular to the guide rail after being limited by the blocking pin and can prevent the falling protector from disengaging from the guide rail. The falling protector is blocked by the blocking piece capable of swinging, so that the falling protector is easy to operate and more convenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field of guide rail type anti-falling devices, and particularly to a derailment lock for a guide rail anti-falling device and its working method. Background Art

[0002] A guide rail type anti-falling device is a safety device for preventing falls, and is widely used in high-altitude operation sites such as electric power, wind power, petrochemical industry, and engineering construction. The guide rail type anti-falling device is combined with an anti-falling device through a specific guide rail system, such as a T-shaped steel guide rail or a round steel guide rail, etc., to form a complete anti-falling system. This device can quickly brake and lock a falling object within a limited distance, thereby effectively protecting the lives of high-altitude operation personnel.

[0003] The derailment lock for an anti-falling device refers to a device for preventing the anti-falling device from disengaging from the guide rail. By providing anti-disengagement devices at both ends of the guide rail, the anti-falling device inserted into the guide rail is clamped by the derailment lock, so that the anti-falling device cannot loosen from the guide rail, playing a role in preventing accidental derailment.

[0004] In some anti-falling device anti-disengagement devices, generally bolts or split pins are used as limiters. A threaded hole or through hole is opened on the guide rail. After the anti-falling device slides into the guide rail, the bolt or split pin is passed through the guide rail, so that the bolt blocks the sliding path of the anti-falling device, achieving the effect of preventing derailment. Although this anti-derailment structure is simple in structure, after the anti-falling device is inserted, it is necessary to manually screw in the anti-derailment structure or use tools to disassemble the split pin, which is inconvenient to operate.

[0005] In order to overcome the above problems, a derailment lock for a guide rail anti-falling device and its working method are needed. Summary of the Invention

[0006] The purpose of the present invention is to provide a derailment lock for a guide rail anti-falling device and its working method, which uses a swingable flap to block the anti-falling device, making it easy to operate and more convenient to use.

[0007] To solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The present invention discloses a derailment lock for a guide rail fall arrester, which is arranged at the end position of the guide rail and comprises a block body, a screw, a lock nut, a baffle, a torsion spring and a baffle pin, wherein the cross section of the block body is a U-shaped structure with an opening facing upward, and the upper part of the U-shape is provided with a slot adapted to the bottom plate of the guide rail; a through hole is provided in the middle of a side wall of the block body, and a groove is provided at the bottom of the end of the guide rail, the screw is inserted into the hole and the groove, and the protruding end is locked by using the lock nut; the baffle and the torsion spring are sleeved on the screw, the baffle is close to the bolt head of the screw, one end of the torsion spring is fixed on the baffle and the other end is fixed on the side wall of the block body; after the long arm end of the baffle is limited by the baffle pin, it is in a direction perpendicular to the guide rail and can prevent the fall arrester from falling off the guide rail.

[0009] Furthermore, the blocking piece is provided with a short arm on a side away from the long arm end, and the short arm and the long arm end are provided at an obtuse angle.

[0010] Furthermore, it also includes a limiting sleeve and a spacer, the limiting sleeve is sleeved on the screw and the torsion spring is sleeved on the outside; the spacer is padded on the inner wall of the screw and bolt head, and the limiting sleeve is spaced between the spacer and the outer wall of the block body.

[0011] Furthermore, it also includes a flat washer and a spring washer sleeved on the protruding end of the screw, the hole is a smooth hole, and the lock nut presses the flat washer and the spring washer onto the outer side wall of the block body.

[0012] Furthermore, a wear-resistant layer is compounded on a side of the spacer facing the baffle, and the wear-resistant layer is specifically made of a polytetrafluoroethylene lining.

[0013] Furthermore, the screw section at the root of the stop pin is threadedly connected to the threaded hole on the outer side wall of the block body, and a screwdriver slot is provided on the outer end surface of the stop pin.

[0014] Furthermore, it also includes a limiting sleeve and a spacer, wherein the limiting sleeve is threadedly connected to the screw and is screwed to the outer wall of the block body; the spacer is arranged on the inner wall of the screw and bolt head and is in contact with the blocking piece.

[0015] Furthermore, it also includes a flat washer and a spring washer sleeved on the protruding end of the screw, the hole is a threaded hole and is threadedly connected to the screw, and the lock nut presses the flat washer and the spring washer onto the outer side wall of the block body.

[0016] Furthermore, a wear-resistant layer is compounded on a side of the spacer facing the baffle, and the wear-resistant layer is specifically made of a polytetrafluoroethylene lining.

[0017] The invention also discloses a working method of a derail lock for a guide rail fall arrester, and the derail lock for a guide rail fall arrester described in any one of the above items is used to derail the guide rail.

[0018] Compared with the prior art, the beneficial technical effects of the present invention are:

[0019] The derail lock for the guide rail fall arrester of the present invention is provided with a baffle as an actuator that directly blocks the fall arrester from falling out of the guide rail. When the long arm end of the baffle is perpendicular to the length direction of the guide rail, the fall arrester can be prevented from falling out. After the baffle is manually turned forward to a right angle position, the long arm end of the baffle is parallel to the length direction of the guide rail, which is convenient for disassembling the fall arrester. By setting the torsion spring, it can be ensured that the baffle is in a working position to block the fall arrester under normal conditions. The opening of the groove not only plays the role of threading the screw, but also prevents the block body from moving along the length direction of the guide rail. Compared with the method of punching holes on the guide rail, it not only ensures that the screw has a larger diameter but also reduces the degree of damage to the strength of the guide rail. The derail lock for the guide rail fall arrester of the present invention uses a swingable baffle to block the fall arrester, which is easy to operate and more convenient to use.

[0020] In addition, by arranging the short arm on the side of the baffle away from the long arm end, the short arm can be manipulated by pulling the baffle, which makes the operation more convenient. By arranging a screwdriver slot on the outer end face of the baffle pin, it is convenient to install and disassemble the baffle pin. By arranging the limit sleeve between the outer side wall of the block body and the bolt head of the screw at intervals, it can be avoided that the torsion spring is crushed during the tightening of the lock nut; by setting the spacer, the wear of the bolt head of the screw on the baffle is reduced, and the composite wear-resistant layer can reduce the resistance and noise during the rotation of the baffle. By setting the flat washer and the spring washer, a certain anti-slip effect is played.

[0021] By setting the limit sleeve threadedly connected to the screw, the distance between the screw bolt head and the outer wall of the block body can be flexibly adjusted to achieve the best match with the working axial length of the torsion spring. By setting the hole as a threaded hole and threadedly connected to the screw, the screw not only plays the role of installing the block body, but also serves as a connecting piece to connect the two side walls of the block body, which can resist the tendency of bending and pressing, that is, improve the self-strength of the block body; by pressing the flat gasket and the spring pad to the outer wall of the block body through the lock nut, multiple threaded connections are achieved, which are locked together, and the anti-loosening performance is better improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the working state of the anti-fall device with the derailment lock for the guide rail anti-fall device of the present invention;

[0024] Figure 2Schematic three-dimensional structure diagram of the derailment lock for the guide rail anti-falling device of the present invention on the guide rail;

[0025] Figure 3 Another perspective three-dimensional structure diagram of the derailment lock for the guide rail anti-falling device of the present invention on the guide rail;

[0026] Figure 4 Schematic three-dimensional structure diagram of the guide rail used in the present invention;

[0027] Figure 5 Schematic three-dimensional structure diagram of the derailment lock for the guide rail anti-falling device of the present invention;

[0028] Figure 6 Schematic front sectional structure diagram of the derailment lock for the guide rail anti-falling device of the present invention;

[0029] Figure 7 Schematic front sectional structure diagram of another embodiment of the derailment lock for the guide rail anti-falling device of the present invention.

[0030] Explanation of reference numerals: 1. Main body of the clamping block; 101. Card slot; 102. Hole; 103. First torsion spring hole; 2. Screw; 3. Lock nut; 4. Retaining plate; 401. Second torsion spring hole; 5. Torsion spring; 6. Limit sleeve; 7. Stop pin; 8. Spacer; 801. Wear-resistant layer; 9. Guide rail; 901. Bottom plate; 902. Groove; 10. Anti-falling device; 11. Flat gasket; 12. Spring washer. Detailed implementation manners

[0031] The core of the present invention is to provide a derailment lock for a guide rail anti-falling device and its working method, which uses a swingable retaining plate to block the anti-falling device, making it easy to operate and more convenient to use.

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0034] Referring to the accompanying drawings, Figure 1 Schematic working diagram of the anti-falling device with the derailment lock for the guide rail anti-falling device of the present invention;Figure 2 Schematic three-dimensional structure diagram of the derailment lock for the guide rail anti-falling device of the present invention on the guide rail; Figure 3 Another perspective three-dimensional structure diagram of the derailment lock for the guide rail anti-falling device of the present invention on the guide rail; Figure 4 Schematic three-dimensional structure diagram of the guide rail used in the present invention; Figure 5 Schematic three-dimensional structure diagram of the derailment lock for the guide rail anti-falling device of the present invention; Figure 6 Schematic front sectional structure diagram of the derailment lock for the guide rail anti-falling device of the present invention; Figure 7 Schematic front sectional structure diagram of another embodiment of the derailment lock for the guide rail anti-falling device of the present invention.

[0035] Embodiment 1

[0036] As Figures 1 to 6 shown, the derailment lock for the guide rail anti-falling device of the present invention is arranged at the end of the guide rail 9, and includes a chuck body 1, a screw 2, a lock nut 3, a retaining plate 4, a torsion spring 5 and a retaining pin 7. The cross-section of the chuck body 1 is a U-shaped structure with an upward opening. A clamping groove 101 adapted to the bottom plate 901 of the guide rail 9 is provided at the upper part of the U-shape. In the working state, the clamping groove 101 is clamped on the bottom plate 901. A through hole 102 is opened in the middle of the side wall of the chuck body 1, and a groove 902 is opened at the bottom of the end of the guide rail 9. The groove 902 is an arc groove and is consistent with the nominal diameter of the screw 2. The screw 2 passes through the hole 102 and the groove 902, and the protruding end is limited and locked by the lock nut 3 to prevent the screw 2 from coming out of the hole 102. The retaining plate 4 and the torsion spring 5 are sleeved on the screw 2. A round hole adapted to the screw 2 is provided in the middle of the retaining plate 4 and can rotate relative to the screw 2. The retaining plate 4 is close to the bolt head of the screw 2. One end of the torsion spring 5 is fixed on the retaining plate 4 and the other end is fixed on the side wall of the chuck body 1. After the long arm end of the retaining plate 4 is turned backward under the drive of the torsion spring 5 and is limited by the retaining pin 7, the long arm end of the retaining plate 4 is perpendicular to the guide rail 9 and can block the anti-falling device 10 from coming out of the guide rail 9.

[0037] By setting the retaining plate 4 as the executing element directly blocking the anti-falling device 10 from coming out of the guide rail 9, when the long arm end of the retaining plate 4 is perpendicular to the length direction of the guide rail 9, the anti-falling device 10 can be prevented from coming out. After the long arm end of the retaining plate 4 is manually turned forward by a right angle position, the long arm end of the retaining plate 4 is parallel to the length direction of the guide rail 9, which is convenient for disassembling the anti-falling device 10. Through the setting of the torsion spring 5, it can be ensured that the retaining plate 4 is in the working position of blocking the derailment under normal conditions. Through the opening of the groove 902, it not only plays the role of passing through the screw 2, but also prevents the chuck body 1 from moving along the length direction of the guide rail 9. Compared with the method of perforating the guide rail 9, it not only ensures that the screw 2 has a larger diameter but also reduces the damage degree to the strength of the guide rail 9. The derailment lock for the guide rail anti-falling device of the present invention uses a swingable retaining plate to block the anti-falling device, which is convenient for easy operation and more convenient to use.

[0038] Specifically, as Figures 1 to 3 andFigure 5 As shown, the baffle 4 is provided with a short arm on the side away from the long arm end, and the short arm and the long arm end are arranged at an obtuse angle. The round hole of the sleeve screw 2 is provided between the short arm and the long arm end. The short arm is provided with a second torsion spring hole 401 for installing the end of the torsion spring 5, and the side wall of the block body 1 is provided with a first torsion spring hole 103 for installing the other end of the torsion spring 5.

[0039] By arranging the short arm on the side of the blocking piece 4 away from the long arm end, the short arm can be manipulated by pulling the blocking piece 4, so the operation is more convenient.

[0040] In a specific implementation of this embodiment, Figure 3 and Figure 5 As shown, the screw section at the root of the stop pin 7 is threadedly connected to the threaded hole on the outer side wall of the block body 1, and a screwdriver slot is provided on the outer end surface of the stop pin 7, which may be a slotted slot or a cross slot.

[0041] By providing a screwdriver slot on the outer end surface of the stop pin 7, it is convenient to install and remove the stop pin 7.

[0042] In a specific implementation of this embodiment, Figure 5 and Figure 6 As shown, the derailment lock for the guide rail anti-fall device of the present invention also includes a limit sleeve 6 and a spacer 8. The limit sleeve 6 is sleeved on the screw 2 and a torsion spring 5 is sleeved on the outside. The spacer 8 is cushioned on the inner wall of the bolt head of the screw 2, and the limit sleeve 6 is spaced between the spacer 8 and the outer wall of the block body 1.

[0043] Specifically, if Figure 5 and Figure 6 As shown, the derailment lock for the guide rail anti-fall device of the present invention also includes a flat washer 11 and a spring washer 12 sleeved on the protruding end of the screw 2. The hole 102 is a light hole, the screw 2 passes through the hole 102, and the lock nut 3 presses the flat washer 11 and the spring washer 12 to the outer side wall of the block body 1.

[0044] Specifically, if Figure 6 As shown, a wear-resistant layer 801 is compounded on one side of the spacer 8 facing the baffle 4, and the wear-resistant layer 801 is specifically made of a polytetrafluoroethylene lining.

[0045] The limiting sleeve 6 is arranged between the outer wall of the block body 1 and the bolt head of the screw 2 to avoid the torsion spring 5 from being crushed during the compression of the lock nut 3; the spacer 8 is arranged to reduce the wear of the bolt head of the screw 2 on the baffle 4, and the composite wear-resistant layer 801 can reduce the resistance and noise during the rotation of the baffle 4. The flat washer 11 and the spring washer 12 are arranged to play a certain role in preventing the baffle 4 from falling off.

[0046] The working process of the derailment lock for the guide rail anti-fall device of this embodiment is as follows: during installation, first connect the block body 1 to the guide rail 9, and the card slot 101 is slidably adapted to the base plate 901 to ensure that the hole 102 is coaxially arranged with the groove 902. The spacer 8, the baffle 4, the torsion spring 5 and the limiting sleeve 6 are sleeved on the screw 2. The screw 2 passes through the hole 102 and the groove 902, and the end of the screw 2 is inserted into the flat washer 11 and the spring washer 12, and then the lock nut 3 is preliminarily connected. The two ends of the torsion spring 5 are respectively placed in the torsion spring hole 1 103 and the torsion spring hole 2 401. Use a screwdriver to install the stop pin 7 into the threaded hole on the outer wall of the block body 1. The long arm end of the baffle 4 is flipped backwards under the drive of the torsion spring 5 and is limited by the stop pin 7. Finally, tighten the lock nut 3 and observe whether the spring washer 12 is flattened. When installing or removing the fall arrester 10, the operator holds the short arm of the baffle 4 and rotates the long arm end of the baffle 4 forward to make it parallel to the length direction of the guide rail 9. At this time, the end face of the fall arrester 10 will not be blocked, and the fall arrester 10 can be smoothly inserted into or removed from the guide rail 9. Under normal working conditions, the long arm end of the baffle 4 is driven by the torsion spring 5 to flip backward and is limited by the stop pin 7. The long arm end of the baffle 4 is perpendicular to the length direction of the guide rail 9, and the long arm end of the baffle 4 blocks the end face of the fall arrester 10 to prevent it from falling off the guide rail 9.

[0047] In summary, the derail lock for the guide rail anti-drop device of the present invention is provided with a baffle 4 as an actuator that directly blocks the anti-drop device 10 from coming out of the guide rail 9. When the long arm end of the baffle 4 is perpendicular to the length direction of the guide rail 9, the anti-drop device 10 can be prevented from coming out. After the baffle 4 is turned forward by hand to a right angle position, the long arm end of the baffle 4 is parallel to the length direction of the guide rail 9, which is convenient for disassembling the anti-drop device 10. Through the setting of the torsion spring 5, it can be ensured that the baffle 4 is in a working position to block the escape under normal conditions. Through the opening of the groove 902, it not only plays the role of threading the screw 2, but also prevents the block body 1 from moving along the length direction of the guide rail 9. Compared with the method of perforating the guide rail 9, it is ensured that the screw 2 has a larger diameter and reduces the degree of damage to the strength of the guide rail 9. The derail lock for the guide rail anti-drop device of the present invention adopts a swingable baffle to block the anti-drop device, which is easy to operate and use more conveniently. In addition, by arranging the short arm on the side of the baffle 4 away from the long arm end, the baffle 4 can be manipulated to realize the short arm, and the operation is more convenient. By setting a screwdriver slot on the outer end surface of the stop pin 7, it is convenient to install and remove the stop pin 7. By setting the limit sleeve 6 between the outer wall of the block body 1 and the bolt head of the screw 2, it can avoid the situation that the torsion spring 5 is crushed during the tightening process of the lock nut 3; by setting the spacer 8, the wear of the bolt head of the screw 2 on the stop plate 4 is reduced, and the composite wear-resistant layer 801 can reduce the resistance and noise during the rotation of the stop plate 4. By setting the flat washer 11 and the spring washer 12, a certain anti-slip effect is played.

[0048] Example 2

[0049] This embodiment is formed by improving the anti-loosening performance of the screw 2 on the basis of the above-mentioned embodiment 1. Figure 7 As shown, the derailment lock for the guide rail anti-fall device of the present invention further includes a limit sleeve 6 and a spacer 8, wherein the limit sleeve 6 is threadedly connected to the screw 2 and is screwed to the outer wall of the block body 1. The torsion spring 5 is also sleeved outside the limit sleeve 6. The spacer 8 is cushioned on the inner wall of the bolt head of the screw 2 and contacts the baffle 4.

[0050] By providing the limiting sleeve 6 threadedly connected to the screw 2 , the distance from the bolt head of the screw 2 to the outer side wall of the block body 1 can be flexibly adjusted to achieve optimal matching with the working axial length of the torsion spring 5 .

[0051] In a specific implementation of this embodiment, Figure 7 As shown, the derailment lock for the guide rail fall arrester of the present invention also includes a flat washer 11 and a spring washer 12 which are sleeved on the protruding end of the screw 2, the hole 102 is a threaded hole and is threadedly connected to the screw 2, and the lock nut 3 presses the flat washer 11 and the spring washer 12 onto the outer wall of the block body 1.

[0052] By setting the hole 102 as a threaded hole and threading it with the screw 2, the screw 2 not only serves to install the block body 1, but also serves as a connecting piece to connect the two side walls of the block body 1, which can resist the tendency of bending and pressing, that is, the self-strength of the block body 1 is improved; by pressing the flat gasket 11 and the spring gasket 12 to the outer wall of the block body 1 through the lock nut 3, multiple threaded connections are realized, and they are locked with each other, and the anti-loosening performance is better improved.

[0053] Specifically, the side of the spacer 8 facing the baffle 4 is compounded with a wear-resistant layer 801, and the wear-resistant layer 801 is specifically made of a polytetrafluoroethylene liner. The composite wear-resistant layer 801 can reduce the resistance and noise during the rotation of the baffle 4.

[0054] The working principle of the derail lock for the guide rail anti-fall device of this embodiment is as follows: during installation, first connect the block body 1 to the guide rail 9, and the slot 101 is slidably adapted to the base plate 901 to ensure that the hole 102 is coaxially arranged with the groove 902. The spacer 8, the baffle 4 and the torsion spring 5 are on the screw 2, and the limit sleeve 6 is threadedly connected to the screw 2. Use a vernier caliper to measure the distance from the outer end face of the limit sleeve 6 to the inner side wall of the baffle 4. After ensuring that the design requirements are met, the screw 2 is threadedly connected to the hole 102 until the outer end face of the limit sleeve 6 abuts against the side wall of the block body 1. After the screw 2 protrudes from the end and is inserted into the flat gasket 11 and the spring pad 12, the lock nut 3 is connected, and finally the lock nut 3 is tightened, and the spring pad 12 is observed to be flattened. When the derail lock for the guide rail anti-fall device of this embodiment is used, it is consistent with the above-mentioned embodiment and will not be repeated here.

[0055] In summary, the derailment lock for the guide rail anti-fall device of the present invention can flexibly adjust the distance between the bolt head of the screw 2 and the outer wall of the block body 1 by setting the limit sleeve 6 threadedly connected to the screw 2, so as to achieve the best match with the working axial length of the torsion spring 5. By setting the hole 102 as a threaded hole and threadedly connected to the screw 2, the screw 2 not only plays the role of installing the block body 1, but also connects the two side walls of the block body 1 as a connecting piece, which can resist the tendency of bending and pressing, that is, improve the self-strength of the block body 1; by pressing the flat gasket 11 and the spring gasket 12 to the outer wall of the block body 1 through the lock nut 3, multiple threaded connections are realized, and they are locked mutually, and the anti-loosening performance is better improved.

[0056] The invention also discloses a working method of a derail lock for a guide rail fall arrester, and applies the derail lock for the guide rail fall arrester described in any one of the above embodiments.

[0057] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0058] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A derailment lock for a guide rail fall arrester, arranged at the end of a guide rail (9), characterized in that: The invention comprises a card block body (1), a screw (2), a lock nut (3), a baffle (4), a torsion spring (5) and a baffle pin (7); the cross section of the card block body (1) is a U-shaped structure with an opening facing upwards; the upper part of the U-shaped structure is provided with a card slot (101) adapted to the bottom plate (901) of the guide rail (9); a through hole (102) is provided in the middle of the side wall of the card block body (1); a groove (902) is provided at the bottom of the end of the guide rail (9); the screw (2) is inserted into the hole (102) and the guide rail (9) The locking nut (3) is used to limit and lock the protruding end in the groove (902); the baffle (4) and the torsion spring (5) are sleeved on the screw (2), the baffle (4) is close to the bolt head of the screw (2), one end of the torsion spring (5) is fixed on the baffle (4) and the other end is fixed on the side wall of the block body (1); after the long arm end of the baffle (4) is limited by the stop pin (7), it is in a direction perpendicular to the guide rail (9) and can prevent the fall arrester (10) from falling off the guide rail (9).

2. The derailment lock for the guide rail fall arrester according to claim 1, characterized in that: The blocking piece (4) is provided with a short arm on a side away from the long arm end, and the short arm and the long arm end are arranged at an obtuse angle.

3. The derailment lock for the guide rail anti-fall device according to claim 1, characterized in that: It also includes a limiting sleeve (6) and a spacer (8), wherein the limiting sleeve (6) is sleeved on the screw (2) and the torsion spring (5) is sleeved on the outside; the spacer (8) is cushioned on the inner wall of the bolt head of the screw (2), and the limiting sleeve (6) is spaced between the spacer (8) and the outer wall of the block body (1).

4. The derailment lock for the guide rail anti-fall device according to claim 3, characterized in that: It also includes a flat washer (11) and a spring washer (12) sleeved on the protruding end of the screw (2), the hole (102) is a smooth hole, and the lock nut (3) presses the flat washer (11) and the spring washer (12) onto the outer side wall of the block body (1).

5. The derailment lock for the guide rail anti-fall device according to claim 3, characterized in that: The side of the spacer (8) facing the baffle (4) is compounded with a wear-resistant layer (801), and the wear-resistant layer (801) is specifically a polytetrafluoroethylene lining layer.

6. The derailment lock for the guide rail fall arrester according to claim 1, characterized in that: The screw rod section at the root of the stop pin (7) is threadedly connected to the threaded hole on the outer side wall of the block body (1), and the outer end surface of the stop pin (7) is provided with a screwdriver slot.

7. The derailment lock for the guide rail fall arrester according to claim 1, characterized in that: It also includes a limiting sleeve (6) and a spacer (8), wherein the limiting sleeve (6) is threadedly connected to the screw (2) and screwed onto the outer wall of the block body (1); the spacer (8) is cushioned on the inner wall of the bolt head of the screw (2) and contacts the baffle (4).

8. The derailment lock for the guide rail fall arrester according to claim 7, characterized in that: It also includes a flat washer (11) and a spring washer (12) sleeved on the protruding end of the screw (2), the hole (102) is a threaded hole and is threadedly connected to the screw (2), and the lock nut (3) presses the flat washer (11) and the spring washer (12) onto the outer wall of the block body (1).

9. The derailment lock for the guide rail fall arrester according to claim 7, characterized in that: The side of the spacer (8) facing the baffle (4) is compounded with a wear-resistant layer (801), and the wear-resistant layer (801) is specifically a polytetrafluoroethylene lining layer.

10. A method for operating a derailment lock for a guide rail anti-fall device, characterized in that: The derailment lock of the guide rail fall arrester described in any one of claims 1 to 9 is used to prevent the fall arrester (10) from falling off the guide rail (9).

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