Anti-falling track and T-shaped anti-falling structure
By using a wavy protrusion and an interlocking structure of interfaces in the fall arrestor rail, the problem of jamming at the profile connection is solved, achieving smooth sliding and stable connection of the fall arrestor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG HUIYING ELECTRIC POWER ENG
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-08
AI Technical Summary
Existing fall arrestor tracks are prone to gaps or protruding areas at the profile joints, causing the fall arrestor to jam and affecting ease of use.
The first and second tracks are aligned with each other through wavy protrusions and wavy interfaces, and fixed with connecting plates and fasteners to ensure stable alignment of the tracks and avoid jamming.
It improves the stability of the fall arrestor track, ensures smooth sliding of the fall arrestor, simplifies the assembly process, and avoids jamming problems.
Smart Images
Figure CN224207250U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fall protection devices, and in particular to a fall protection track and a T-shaped fall protection structure. Background Technology
[0002] In existing fall protection equipment, the fall arrestor is usually installed on a fall arrestor track. The fall arrestor is connected to the worker's body. When the worker climbs, he drags the fall arrestor along the fall arrestor track. When the worker accidentally falls, the fall arrestor track restricts the fall of the fall arrestor, ensuring that the worker will not continue to fall.
[0003] Existing fall arrestor tracks generally use profiles as the main material and are connected by splicing multiple sections. The existing fall arrestor tracks mainly connect the profiles directly by welding or fixing them with screws. However, due to certain errors in the processing of different profiles, there may be gaps or protruding areas when the profiles are joined together, resulting in unevenness at the joint area. When the fall arrestor passes between two profiles, it may get stuck in the gaps or protruding areas, which requires manual adjustment and causes inconvenience. Utility Model Content
[0004] The purpose of this utility model is to propose a fall-prevention track, which uses a first track and a second track as the main frame. The first track and the second track are aligned with each other at their ends by wavy protrusions and wavy interfaces, and then fixed by connecting plates and fasteners. The stability of the fall-prevention track is improved by the staggered connection of the wavy protrusions and wavy interfaces.
[0005] This utility model also proposes a T-shaped fall arrest structure, which is equipped with a fall arrestor and the aforementioned fall arrest track.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] A fall arrestor track includes: a sub-track, a connecting plate, and fasteners;
[0008] The track is provided with a horizontal plate and a vertical plate, one end of the vertical plate being connected to the horizontal plate; the vertical plate is provided with at least two vertical plate holes;
[0009] The sub-track is divided into: the first sub-track and the second sub-track;
[0010] The ends of the first sub-track and the second sub-track are close to each other in a straight line. One of them is provided with a wavy interface, and the other of them is provided with a wavy protrusion. The wavy protrusion extends into the wavy interface.
[0011] The connecting plate has a plurality of straight connecting holes along its length. The connecting plate contacts the vertical plates of both the first and second sub-tracks. The connecting plate extends from the end of the first sub-track to the end of the second sub-track. The connecting plate is disposed on the left and right sides of the vertical plate.
[0012] The fasteners include: fixing bolts and fixing nuts;
[0013] The fixing nuts are welded to multiple connecting holes on one of the connecting plates, and the fixing nuts and connecting holes are concentric. The fixing nuts and connecting holes are aligned with the vertical plate holes. After the fixing bolts pass through the connecting holes and the vertical plate holes, they cooperate with the fixing nuts to fix the first sub-track, the second sub-track and the connecting plates on both sides into one piece, so that the first sub-track and the second sub-track are aligned with each other.
[0014] Alternatively, both connecting plates may be welded with the fixing nuts.
[0015] Alternatively, one of the connecting plates may have a pre-threaded hole fitted with the fixing bolt, so that one of the connecting plates, the fixing nut, and the fixing bolt are integrated as a single unit.
[0016] Alternatively, the connecting plate may be provided with an elongated circular hole that extends along the length of the sub-track; the elongated circular hole is located at the wavy protrusion and the wavy interface.
[0017] Alternatively, one end of the vertical plate can be connected to the middle of the horizontal plate; the wavy interface or wavy protrusion is disposed on the horizontal plate and located on the left and right sides of the vertical plate.
[0018] Alternatively, the wavy interface or wavy protrusion may also be provided on the vertical plate.
[0019] Optimally, the end of the connecting plate is provided with a wedge-shaped joint, the outer diameter of which gradually increases from the end to the middle of the connecting plate, and a guide slope is formed on the side facing the horizontal plate.
[0020] Optimally, the vertical plate is provided with a plurality of vertical plate holes along its length; the wedge-shaped joint is aligned linearly with the center of the vertical plate hole at the end with the smallest outer diameter.
[0021] A T-shaped fall arrest structure, comprising a fall arrester and a fall arrest track as described above;
[0022] The fall arrestor is equipped with a fall arrestor latch, which is engaged with the horizontal plate.
[0023] Alternatively, the fall arrestor rail may further include: a stop;
[0024] The stop is detachably fixed to the end of the plurality of fixing bolts, so that the stop is limited to the vertical plate; the stop is located below the fall arrestor; the fall arrestor falls to abut against the stop, and the stop is used to restrict the fall arrestor from moving downward.
[0025] Compared with the prior art, one of the above technical solutions has the following beneficial effects:
[0026] This solution provides a fall arrest track, which uses a first track and a second track as the main frame. The first track and the second track are aligned with each other at their ends by wavy protrusions and wavy interfaces, and then fixed with connecting plates and fasteners. The stability of the fall arrest track is improved. The staggered connection of the wavy protrusions and wavy interfaces can avoid the phenomenon of the fall arrester getting stuck when sliding through the track docking position. Attached Figure Description
[0027] Figure 1 This is a structural schematic diagram of one embodiment of the fall arrestor track;
[0028] Figure 2 This is a structural diagram of one embodiment of the T-shaped fall arrestor structure;
[0029] Figure 3 This is an exploded view of one embodiment of the T-shaped fall arrestor structure;
[0030] Figure 4 This is a schematic diagram of one embodiment of a wave-shaped protrusion extending into a wave-shaped interface.
[0031] in:
[0032] 1. Track; 2. Connecting plate; 3. Fastener; 4. Fall arrestor;
[0033] Horizontal plate 101, vertical plate 102; first sub-track 11, second sub-track 12; wavy interface 13, wavy protrusion 14; stop 15; vertical plate hole 16;
[0034] 21 connecting hole; 22 elongated round hole; 23 wedge-shaped connector; 231 guide bevel;
[0035] Fixing bolt 31, fixing nut 32; anti-fall clip 41. Detailed Implementation
[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0037] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "inner side," "outer side," "inner end," "outer end," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish descriptive features, without any order or emphasis. In the description of this utility model, unless otherwise stated, "multiple" means two or more.
[0038] like Figure 1-4 A fall arrestor track includes: a sub-track 1, a connecting plate 2, and fasteners 3;
[0039] The sub-track 1 is provided with a horizontal plate 101 and a vertical plate 102, one end of the vertical plate 102 is connected to the horizontal plate 101; the vertical plate 102 is provided with at least two vertical plate holes 16;
[0040] The sub-track 1 is divided into: the first sub-track 11 and the second sub-track 12;
[0041] The end of the first sub-track 11 is close to the end of the second sub-track 12 in a straight line. One of them is provided with a wavy interface 13, and the other of them is provided with a wavy protrusion 14. The wavy protrusion 14 extends into the wavy interface 13.
[0042] The connecting plate 2 has a plurality of straight connecting holes 21 along its length. The connecting plate 2 is in planar contact with the vertical plate 102 of both the first sub-track 11 and the second sub-track 12. The connecting plate 2 extends from the end of the first sub-track 11 to the end of the second sub-track 12. The connecting plate 2 is disposed on the left and right sides of the vertical plate 102.
[0043] The fastener 3 includes: a fixing bolt 31 and a fixing nut 32;
[0044] The fixing nuts 32 are welded to multiple connecting holes 21 on one of the connecting plates 2, and the fixing nuts 32 and the connecting holes 21 are concentric. The fixing nuts 32 and the connecting holes 21 are respectively aligned with the vertical plate holes 16. After the fixing bolts 31 pass through the connecting holes 21 and the vertical plate holes 16, they cooperate with the fixing nuts 32 to fix the first sub-track 11, the second sub-track 12 and the connecting plates 2 on both sides into one piece, so that the first sub-track 11 and the second sub-track 12 are aligned with each other.
[0045] This solution provides a fall arrest track, which uses a first sub-track 11 and a second sub-track 12 as the main frame. The fixing nuts 32 welded to the connecting plate 2 cooperate with the fixing bolts 31. The fixing nuts 32 at both locations can ensure that the first sub-track 11 and the second sub-track 12 are aligned in a straight line. This ensures that the wavy protrusions 14 and the wavy interfaces 13 are staggered during assembly, which simplifies the assembly process and avoids the fall arrester 4 from getting stuck when sliding through the track docking position.
[0046] Specifically, the sub-track 1 can be divided into a first sub-track 11 and a second sub-track 12. Both the first sub-track 11 and the second sub-track 12 are equipped with a horizontal plate 101 and a vertical plate 102, respectively. One end of the vertical plate 102 is connected to the horizontal plate 101. The sub-track 1 is generally T-shaped, L-shaped, or V-shaped. In this design, the ends of the first sub-track 11 and the second sub-track 12 are horizontally adjacent. The first sub-track 11 can be optionally machined with a wavy protrusion 14 (or a wavy interface 13) at its end, and the second sub-track 12 can be optionally machined with a wavy protrusion 14 (or a wavy interface 13) at its end. A wavy interface 13 (or wavy protrusion 14) is machined into the part, and the wavy protrusion 14 extends into the wavy interface 13. It is mainly in a non-contact state, and a gap is formed between the two. A single connecting plate 2 can be set on the vertical plate 102 of both the first sub-track 11 and the second sub-track 12. The connecting plate 2 transitions from the end of the vertical plate 102 of the first sub-track 11 to the end of the vertical plate 102 of the second sub-track 12. At the same time, the connecting hole 21 of the vertical plate 102 can be aligned with the vertical plate hole 16 of the first sub-track 11 and the second sub-track 12 in the vertical plate 102.
[0047] Since the fixing nut 32 is welded to the connecting hole 21 of one of the connecting plates 2, the number of fixing nuts 32 is at least 2, and one fixing nut 32 is welded to one of the connecting holes 21; and the connecting holes 21 are arranged along the length direction of the connecting plate 2, so the fixing nuts 32 are also arranged along the length direction of the connecting plate 2. The inner ring of the fixing nut 32 protrudes from the connecting hole 21, and the fixing nut 32, connecting hole 21, and vertical plate hole 16 are aligned in a straight line; the fixing bolt 31 passes through the connecting holes 21 of the two side connecting plates 2 and the vertical plate hole 16 of the vertical plate 102; when at least two different fixing bolts 31 pass through the two vertical plate holes 16 of the first sub-track 11 and the two vertical plate holes 16 of the second sub-track 12, the first sub-track 11 and the second sub-track 12 are positioned along the straight line arrangement direction of the connecting holes 21 by fixing bolts 31 at different positions; under the action of the threads, the connecting plates 2 on both sides clamp the vertical plate 102, so that the first sub-track 11, the second sub-track 12 and the connecting plates 2 on both sides are fixed together; the wavy protrusion 14 extends into the staggered connection structure formed by the wavy interface 13 for fixation. The wavy protrusion 14 extends into the wavy interface 13 and is fixed in angle and position. Thus, the first sub-track 11 and the second sub-track 12 remain aligned, that is, the horizontal plates 101 of the two are aligned with the horizontal plates 101, and the vertical plates 102 of the two are aligned with the vertical plates 102. Therefore, the end of the first sub-track 11 is separated from and close to the end of the second sub-track 12. The gap between the two can be designed to be infinitely small, and there is no medium for direct or indirect connection between the two. During the transition of the fall arrestor 4 fixed to the vertical plate 102 from the first sub-track 11 to the second sub-track 12, the staggered connection of the wavy protrusion 14 and the wavy interface 13 is stable. The fall arrestor 4 will not be obstructed by the unevenness of the port position, thus improving the smoothness of the transition of the fall arrestor 4.
[0048] Alternatively, both connecting plates 2 can be welded with the fixing nuts 32.
[0049] In one embodiment, when both connecting plates 2 are welded with fixing nuts 32, the fixing nuts 32 are pre-fixed on both connecting plates 2 before assembly. During assembly, it is only necessary to install fixing bolts 31 on the fixing nuts 32 of one of the plates. After the screw of the fixing bolt 31 passes through the fixing nut 32 and the connecting hole 21, it continues to pass through the vertical plate hole 16 of the sub-track 1, and finally cooperates with the fixing nut 32 of the other connecting plate 2 to complete the assembly. This simplifies the positioning steps of the fixing nuts 32 on the connecting plates 2. After the fixing bolt 31 completes the thread engagement, it can fix the staggered connection structure of the wavy protrusion 14 and the wavy interface 13.
[0050] Alternatively, the connecting hole 21 of one of the connecting plates 2 may be pre-threaded with the fixing bolt 31, so that one of the connecting plates 2, the fixing nut 32 and the fixing bolt 31 are integrated into one piece.
[0051] In this embodiment, both connecting plates 2 are welded with fixing nuts 32, and the connecting hole 21 of one of the connecting plates 2 is pre-threaded with a fixing bolt 31. The pre-threaded engagement here means that before the sub-track 1, connecting plate 2 and fastener 3 are assembled, the fixing nut 32 welded to the connecting plate 2 is already engaged with the fixing bolt 31. This embodiment can further improve the assembly efficiency of the fall protection track. The integrated connecting plate 2, fixing nut 32 and fixing bolt 31 only need to pass the fixing bolt 31 through the vertical plate hole 16 and engage with the connecting hole 21 of the other connecting plate to achieve rapid assembly of the fall protection track, and can achieve the positioning of the connecting plate 2 on the sub-track 1, so that after the fixing bolt 31 completes the thread engagement, the first sub-track 11 and the second sub-track 12 can form an interlaced connection structure of wavy protrusion 14 and wavy interface 13 for fixation.
[0052] Alternatively, the connecting plate 2 may be provided with an elongated circular hole 22, which extends along the length of the sub-track 1; the elongated circular hole 22 is located at the wavy protrusion 14 and the wavy interface 13.
[0053] The connecting plate 2 of this design has an elongated circular hole 22, which is located between the wavy protrusion 14 and the wavy interface 13. On the one hand, the elongated circular hole 22 is a hollow structure, exposing the wavy protrusion 14 and the wavy interface 13, which can be used to observe the docking of the wavy protrusion 14 and the wavy interface 13. This facilitates daily observation of the horizontal alignment of the end of the first sub-track 11 and the end of the second sub-track 12, effectively ensuring that the fall arrestor 4 remains smooth when passing through the wavy protrusion 14 and the wavy interface 13. On the other hand, the elongated circular hole 22 has a certain straight-line distance and is not a complete circular hole. The axial symmetry of the circular part of the elongated circular hole 22 ensures that the expansion / contraction in each direction is symmetrically distributed during thermal expansion and contraction, avoiding stress imbalance caused by the deformation difference in different directions of asymmetrical shapes (such as squares). In addition, the elongated structure of the elongated circular hole 22 can convert the temperature stress generated by thermal expansion and contraction into uniform axial strain, avoiding the local accumulation of stress in the fall arrestor track.
[0054] Alternatively, one end of the vertical plate 102 is connected to the middle of the horizontal plate 101; the wavy interface 13 or wavy protrusion 14 is disposed on the horizontal plate 101 and located on the left and right sides of the vertical plate 102.
[0055] The wavy interface 13 or wavy protrusion 14 of this solution can be set at any position at the end of the sub-track 1 as needed. In some embodiments, the wavy interface 13 or wavy protrusion 14 is set on the horizontal plate 101. Since one end of the vertical plate 102 is connected to the middle of the horizontal plate 101, it is equivalent to a T-shape. The wavy interface 13 or wavy protrusion 14 can be distributed on the left and right positions of the vertical plate 102, so that the wavy interface 13 or wavy protrusion 14 can be distributed at the end of the horizontal plate 101, which meets the structural requirements of embodiments where the sub-track 1 is a T-shaped structure.
[0056] Alternatively, the wavy interface 13 or the wavy protrusion 14 may also be disposed on the vertical plate 102.
[0057] In some embodiments, the wavy protrusion 14 or the wavy protrusion 14 can be provided on the vertical plate 102 as needed. In this way, the T-shaped sub-tracks 1 can be provided with wavy interfaces 13 or wavy protrusions 14 on both the horizontal plate 101 and the vertical plate 102 which are distributed in a T-shape. The wavy protrusion 14 extends into the wavy interface 13 and cannot rotate in the wavy interface 13. Under the clamping action of the connecting plate 2, it has a certain limiting effect on the first sub-track 11 and the second sub-track 12. The first sub-track 11 and the second sub-track 12 are restricted in both the lateral and vertical directions, which can improve the connection stability of the first sub-track 11 and the second sub-track 12 and prevent the connection angle of the first sub-track 11 and the second sub-track 12 from changing.
[0058] Alternatively, the end of the connecting plate 2 is provided with a wedge-shaped joint 23, the outer diameter of which gradually increases from the end to the middle of the connecting plate 2, and a guide slope 231 is formed on the side facing the horizontal plate 101.
[0059] The wedge-shaped joint 23 can provide guidance for the fall arrestor 4. The fall arrestor 4 can be locked onto the left and right sides of the horizontal plate 101. The locking end of the fall arrestor 4 will extend into the sides near the vertical plate 102. Therefore, the fall arrestor 4 may hit the connecting plate 2 when passing through it. The connecting plate 2 of this solution is provided with a wedge-shaped joint 23. The outer diameter of the wedge-shaped joint 23 gradually increases from the end to the middle, so that it has a guiding slope 231. When the fall arrestor 4 passes through the connecting plate 2, the guiding slope 231 can guide the fall arrestor 4 to move into the gap between the horizontal plate 101 of the first sub-track 11 (or the horizontal plate 101 of the second sub-track 12) and the connecting plate 2. After passing through the connecting plate 2, the guiding slope 231 guides the fall arrestor 4 to disengage from the gap, so that the fall arrestor 4 can automatically slide into and out of the gap, avoiding the fall arrestor 4 from getting stuck.
[0060] Optimally, the guide slope 231 is symmetrically distributed on the vertical plate 102, and the vertical plate 102 is provided with a plurality of vertical plate holes 16 along the length direction; the wedge joint 23 is aligned with the center of the vertical plate hole 16 at the end with the smallest outer diameter.
[0061] The wedge-shaped joint 23 provides positioning for the connecting plate 2. Specifically, the vertical plate 102 has multiple vertical plate holes 16 along its length, and the vertical plate holes 16 between the first sub-track 11 and the second sub-track 12 are located on the same straight line. The connecting plate 2 obstructs the vertical plate holes 16, making it inconvenient to manually align the fixing nut 32 with the vertical plate holes 16. Therefore, in this embodiment, it is only necessary to align the wedge-shaped joint 23 with the center of the other unobstructed vertical plate holes 16 at the end with the smallest outer diameter, so that the fixing nut 32 is approximately aligned with the vertical plate hole 16. Simply push the connecting plate 2 forward to insert the fixing bolt 31 into the vertical plate hole 16, and then install the fixing nut 32 to complete the assembly of the anti-fall track. The guide ramps 231 are symmetrically distributed on the vertical plate 102, minimizing the end of the wedge-shaped joint 23 and making it easier to align with the center of the vertical plate hole 16. At the same time, since the wedge-shaped joint 23 has symmetrical guide ramps 231, and the connecting plate 2 has wedge-shaped joints 23 at both ends, the connecting plate 2 is more conveniently positioned.
[0062] A T-shaped fall arrest structure is provided with a fall arrester 4 and a fall arrest track as described above;
[0063] The fall arrestor 4 is provided with a fall arrestor slot 41, which is engaged with the horizontal plate 101.
[0064] The fall arrestor 4 is a known protective device for locking falling objects or people. It is generally equipped with a fall arrestor latch 41 that can be locked onto a horizontal plate 101. The fall arrestor track is vertically distributed. The T-shaped fall arrestor structure is installed on the vertical ladder. When workers use the vertical ladder, they also lock the fall arrestor 4 onto the fall arrestor track to provide protection for the workers.
[0065] Alternatively, the fall arrestor rail may further include: a stop 15;
[0066] The stop 15 is detachably fixed to the end of the plurality of fixing bolts 31, so that the stop 15 is limited to the vertical plate 102; the stop 15 is located below the fall arrestor 4; the fall arrestor 4 falls to abut against the stop 15, and the stop 15 is used to restrict the fall arrestor 41 from moving downward.
[0067] In this scheme, the first sub-track 11 and the second sub-track 12 can be equipped with a stop 15 on the vertical plate 102; the end of the fixing bolt 31 extends out of the fixing nut 32, which can also be used to fix the stop 15; the stop 15 is connected to the end of the fixing bolt 31 in a known manner, such as by a nut engaging with the fixing bolt 31, or by its own internal thread structure, or by a clip fitting onto the fixing bolt 31; and since there can be multiple fixing bolts 31, the stop 15 can be connected to different fixing bolts 31 at multiple positions, improving the fixing stability of the stop 15 on the sub-track 1, and the stop 15 is fixed below the fall arrestor 4; when a worker accidentally falls, the fall arrestor 4 moves downward to abut the stop 15, and the stop 15 can restrict the fall arrestor 41 from moving further downward, thereby restricting the fall arrestor 4 from falling further, and has a fall arrest effect in mid-air. Meanwhile, as workers climb upwards, they can install different stops 15 at different positions on the fall arrest track, thus providing stops 15 at different heights and achieving multi-level fall arrest at different heights.
[0068] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A fall-prevention track, characterized in that, include: The components include the track, connecting plate, and fasteners. The track is provided with a horizontal plate and a vertical plate, one end of the vertical plate being connected to the horizontal plate; the vertical plate is provided with at least two vertical plate holes; The sub-track is divided into: the first sub-track and the second sub-track; The ends of the first sub-track and the second sub-track are close to each other in a straight line. One of them is provided with a wavy interface, and the other of them is provided with a wavy protrusion. The wavy protrusion extends into the wavy interface. The connecting plate has a plurality of straight connecting holes along its length. The connecting plate contacts the vertical plates of both the first and second sub-tracks. The connecting plate extends from the end of the first sub-track to the end of the second sub-track. The connecting plate is disposed on the left and right sides of the vertical plate. The fasteners include: fixing bolts and fixing nuts; The fixing nuts are welded to multiple connecting holes on one of the connecting plates, and the fixing nuts and connecting holes are concentric. The fixing nuts and connecting holes are aligned with the vertical plate holes. After the fixing bolts pass through the connecting holes and the vertical plate holes, they cooperate with the fixing nuts to fix the first sub-track, the second sub-track and the connecting plates on both sides into one piece, so that the first sub-track and the second sub-track are aligned with each other.
2. The anti-fall track according to claim 1, characterized in that, Both connecting plates are welded with the fixing nuts.
3. The anti-fall track according to claim 2, characterized in that, One of the connecting plates has a pre-threaded hole fitted with the fixing bolt, so that one of the connecting plates, the fixing nut and the fixing bolt are integrated as a whole.
4. The anti-fall track according to claim 1, characterized in that, The connecting plate is provided with an elongated circular hole that extends along the length of the sub-track; the elongated circular hole is located at the wavy protrusion and the wavy interface.
5. A fall-prevention track according to claim 1, characterized in that, One end of the vertical plate is connected to the middle of the horizontal plate; the wavy interface or wavy protrusion is provided on the horizontal plate and located on the left and right sides of the vertical plate.
6. A fall-prevention track according to claim 5, characterized in that, The wavy interface or wavy protrusion is also provided on the vertical plate.
7. A fall-prevention track according to any one of claims 1-6, characterized in that, The end of the connecting plate is provided with a wedge-shaped joint, the outer diameter of which gradually increases from the end to the middle of the connecting plate, and a guide slope is formed on the side facing the horizontal plate.
8. A fall-prevention track according to claim 7, characterized in that, The vertical plate has multiple holes along its length; the wedge-shaped joint is aligned with the center of the hole at the end with the smallest outer diameter.
9. A T-shaped fall arrestor structure, characterized in that, The device includes a fall arrestor and a fall-prevention track as described in any one of claims 1-8; The fall arrestor is equipped with a fall arrestor latch, which is engaged with the horizontal plate.
10. A T-shaped fall arrestor structure according to claim 9, characterized in that, The fall arrestor rail also includes: a stop; The stop is detachably fixed to the end of the plurality of fixing bolts, so that the stop is limited to the vertical plate; the stop is located below the fall arrestor; the fall arrestor falls to abut against the stop, and the stop is used to restrict the fall arrestor from moving downward.