Anti-falling device and wind power tower climbing system
Through the sub-rail connection and the fixing structure of the clamping part, the problems of guide rail strength and installation convenience in the wind power tower climbing system are solved, and a more stable connection between the guide rail and the ladder is achieved, which improves the overall performance and safety of the anti-fall device. .
Patent Information
- Application Number
- CN202323582986.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2033-12-27
AI Technical Summary
The existing anti-fall device has problems such as insufficient rail strength and inconvenient installation in the wind power tower climbing system. Especially in different height environments, deformation and dislocation are prone to occur at the connections of segmented guide rails, which affects safety.
The positioning pin and positioning hole connection structure between the sub-rail and the guide rail is adopted, combined with the design of the clamping part and the fixing part, the guide rail and the ladder are securely fixed by bolts and nuts, and the safety of the anti-fall lock is improved through anti-detachment components.
It improves the overall strength and installation convenience of the anti-fall device, ensures the stable connection between the guide rails and the ladder, enhances the anti-fall effect, and improves the safety of wind power tower maintenance operations.
Smart Images
Figure CN222341837U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of wind power equipment, and specifically relates to a fall prevention device and a wind power tower climbing system. Background Art
[0002] In wind power generation, the impeller is usually placed at a predetermined height to receive wind energy. For this purpose, a high wind turbine tower is required to be set up on the ground to lift the impeller to the required height. Due to the presence of the tower, personnel need to climb or be transported to different heights on the tower to reach the working position during the maintenance of the wind turbine. The transportation of personnel can usually be achieved by ladders. Since ladders involve high-altitude operations, setting up a fall prevention device when using ladders is beneficial to improve safety.
[0003] When using the anti-fall device in the prior art, the guide rail is usually installed on the ladder crossbar first, and then the anti-fall lock is slidably set on the guide rail. When a worker at a height falls accidentally, the lock tongue of the anti-fall lock extends from the anti-fall lock under the influence of the worker and engages with the long hole on the guide rail, thereby preventing the worker from falling.
[0004] The guide rails are affected by different wind power generation environments and have different lengths, so the existing technology uses segmented guide rails to meet the different requirements for the length of guide rails in different working environments. However, the segmented guide rails also bring about the connection problem between the sections of the guide rails.
[0005] On the one hand, in order to make the anti-fall lock of the anti-fall device slide smoothly in the guide rail, the connection part between the guide rail segments needs to have good smoothness; on the other hand, due to the force relationship, the connection position between the segmented guide rails needs to have sufficient strength to avoid misalignment between different segments when the guide rails in different segments are subjected to different forces; thirdly, the connection between the guide rail and the ladder needs to be firm and the position of the connection point needs to be accurate, so as to stably fix the guide rail and the ladder and reduce the deformation of the entire guide rail and the unreasonable position of the connection point.
[0006] If the guide rail of the anti-fall device is deformed, misaligned or has other faults, it is easy to affect the anti-fall effect of the anti-fall device, which is not conducive to ensuring the life safety of wind turbine maintenance workers. Utility Model Content
[0007] The present application is proposed based on the above-mentioned requirements of the prior art. The technical problem to be solved by the present application is to provide an anti-fall device to improve the strength and installation convenience of the anti-fall device.
[0008] In order to solve the above problems, the technical solutions provided by this application include:
[0009] Provided is an anti-fall device and a wind power tower climbing system, characterized in that they include: a guide rail, the guide rail includes at least two sections of sub-guide rails connected in the vertical direction, one end of the sub-guide rail is provided with a positioning pin, and the other end is provided with a positioning hole, the positioning pin is plugged and connected with the positioning hole in the vertical direction to connect the sub-guide rails; a plurality of elongated holes are provided on each section of the sub-guide rail along the vertical direction; a guide rail fixing piece, including a clamping part, the clamping part matches the shape of a ladder so as to be clamped on the ladder; and a fixing part, the fixing part passes through the elongated hole of the guide rail and the clamping part is provided so as to fix the guide rail and the ladder together; wherein the fixing part has a loose state and a fastened state, when the fixing part is in the loose state, the clamping part can rotate relative to the guide rail; when the fixing part is in the fastened state, the fixing part fixes the clamping part to the guide rail; an anti-fall lock, the anti-fall lock is slidably provided on the guide rail, and the anti-fall lock includes a locking tongue that matches the elongated hole.
[0010] Preferably, the clamping portion is formed as a groove-shaped component, which is arranged toward the guide rail; the fixing portion includes a bolt and a nut, the bolt passes through the guide rail and the clamping portion in sequence, and the nut is arranged at the end of the bolt, thereby squeezing and fixing the fixing portion and the guide rail.
[0011] Preferably, a through hole is provided at the bottom of the groove of the groove-shaped component of the clamping portion, the bolt passes through the through hole, and the ladder is clamped in the space enclosed by the bolt and the groove-shaped component.
[0012] Preferably, in two connected sub-guide rails, one guide rail is provided with a positioning pin extending in a vertical direction, and the other sub-guide rail is provided with a positioning hole aligned with the positioning pin.
[0013] Preferably, the anti-fall device also includes a back plate, which is arranged on the back side of the two connected sub-guide rail ends, the upper end of the back plate is fixed to the upper sub-guide rail through the long holes, and the lower end of the back plate is fixed to the lower sub-guide rail through the long holes.
[0014] Preferably, the guide rail is a groove-shaped structure, the groove opening of which is arranged forward, and the groove opening is provided with a bending portion extending from the groove side wall to the middle of the groove opening; the elongated hole is arranged on the groove bottom of the groove-shaped structure of the guide rail.
[0015] Preferably, the anti-fall lock comprises a guide wheel, which is slidably arranged in the groove structure of the guide rail; a lock tongue, which cooperates with the long hole; and a buckle, which cooperates with the buckle on the safety belt.
[0016] Preferably, an anti-slip assembly is provided at the end of the guide rail, and the anti-slip assembly is a groove-shaped structure with a groove arranged backwards, and the groove is provided with a bending portion extending from the groove side wall to the middle of the groove; the anti-slip assembly includes a main body, and the main body matches the groove-shaped structure of the guide rail so as to be clamped on the guide rail; a fixing portion, and the fixing portion includes a bolt, a nut and a flat washer, the bolt is arranged to pass through the guide rail and the main body in sequence, and the nut is arranged at the end of the bolt, so as to squeeze and fix the main body and the guide rail.
[0017] Preferably, the ladder comprises a horizontal bar extending in a vertical direction and providing a means for people to climb, and a vertical bar; the horizontal bar is connected to the clamping portion of the guide rail fixing member.
[0018] And a wind turbine tower climbing system, characterized in that it includes a ladder, which is flexibly arranged at a suitable position in the wind turbine tower according to actual climbing needs; and an anti-fall device, which is arranged on the ladder, and the anti-fall device is as described in any of the above items.
[0019] Compared with the prior art, the present application provides sub-guide rails in the anti-fall device, and the sub-guide rails are detachably connected to each other to match wind turbine towers of different heights, thereby improving the strength of the anti-fall device and the convenience of installation. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0021] Figure 1 It is a front view of the structure of the fall protection device;
[0022] Figure 2 is a side view of the fall protection device structure;
[0023] Figure 3 It is a rear view of the fall protection device structure;
[0024] Figure 4 It is a schematic diagram of the structure of the connecting components between the guide rails;
[0025] Figure 5 It is a schematic diagram of the forward structure of the guide rail fixing;
[0026] Figure 6 It is a schematic diagram of the reverse structure of the guide rail fixing;
[0027] Figure 7 It is a three-dimensional diagram of the anti-fall lock structure;
[0028] Figure 8 This is an exploded view of the first axis of the anti-fall lock;
[0029] Fig. 9 It is a side cross-sectional structural diagram of the first axis of the anti-fall lock;
[0030] Fig.10 This is a side view of the anti-fall lock tongue popping out;
[0031] Fig.11 It is a structural schematic diagram of the anti-slip component.
[0032] Reference numerals:
[0033] 1. Ladder; 2. Guide rail; 3. Anti-fall lock; 4. Anti-slip assembly; 5. Guide rail fixing piece; 6. Guide rail connecting assembly; 1-1. Vertical bar; 1-2. Cross bar; 2-1. Groove; 2-2. Long hole; 2-3. Positioning hole; 2-4. Guide rail rear wall; 2-5. Guide rail left wall; 2-6. Guide rail right wall; 2-7. Guide rail left bending part; 2-8. Guide rail right bending part; 3-1. Wheel; 3-2. Mounting seat; 3-3. Guide wheel; 3-4. Housing; 3-5. First axis; 3-6. Second axis; 3-7. Buckle; 3-8. First protrusion; 3-9. Centrifugal lock; 3 -10, annular protrusion; 3-11, second protrusion; 3-12, locking tongue; 4-1, hexagonal bolt; 4-2, flat washer; 4-3, nut; 4-4 main body; 4-5, front wall of anti-slip assembly; 4-6, left side wall of anti-slip assembly; 4-7, right side wall of anti-slip assembly; 4-8, left bending part of anti-slip assembly; 4-9, right bending part of anti-slip assembly; 5-1, holding part; 5-2, square washer; 5-3, locking nut; 5-4, square neck bolt; 5-5, bottom wall; 5-6, first side wall; 5-7, second side wall; 6-1, back plate; 6-2, positioning pin; 6-3, bolt. DETAILED DESCRIPTION
[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0035] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection, a mechanical connection, an electrical connection or a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0036] The terms “at the bottom”, “at the top”, and “at the top” as used throughout the text refer to relative positions of components of a device and have nothing to do with their orientation in space.
[0037] To facilitate understanding of the embodiments of the present application, further explanation will be given below with reference to specific embodiments in conjunction with the accompanying drawings. The embodiments do not constitute a limitation on the embodiments of the present application.
[0038] The maintenance of the wind turbine tower can be achieved through the wind turbine tower climbing system. The wind turbine tower climbing system can include a ladder, which can be flexibly set at a suitable position in the wind turbine tower according to the actual climbing needs to provide a passage for personnel to ascend and descend in the wind turbine tower. It is preferably set in the wind turbine tower to reduce interference from the external environment and improve safety.
[0039] The structure of the ladder can be realized by using existing technology. A preferred structure can be referred to Figure 1-Figure 3 As shown, the ladder 1 includes a horizontal bar 1-2 extending in a vertical direction and providing a means for people to climb. For the convenience of fixing, the ladder may preferably further include a vertical bar 1-1.
[0040] The vertical rod comprises two rod bodies which are separated and arranged in a vertical arrangement direction. The height of the vertical rod is adapted to the height of the wind power tower, so as to support personnel to perform maintenance work at a required height. Crossbars 1-2 can be arranged at equal intervals in the vertical direction between the rod bodies of the two vertical rods. The crossbars extend in the horizontal direction, and the distance between each other can be set to a size that is convenient for personnel to climb up and down. The crossbar and the vertical rod can adopt various shapes suitable for personnel to climb.
[0041] like Figure 1 As shown, the anti-falling device provided in this specific embodiment includes a guide rail 2 and an anti-falling lock 3.
[0042] The guide rail is relatively fixed to the ladder to provide a track for the anti-fall lock to slide. When a person climbs up and down normally, the anti-fall lock 3 moves up and down with the person in the guide rail. When a person falls accidentally, the anti-fall lock engages with the guide rail to prevent the person from falling, thereby preventing the person from falling.
[0043] The structure of the guide rail 2 in this specific embodiment is as follows Figure 1-Figure 3The guide rail is in the shape of a long strip as a whole, extending in the vertical direction to provide a track for objects to slide up and down. The height of the guide rail is adapted to the height of the ladder and the wind turbine tower, for example, it can extend from the top of the ladder to the bottom, or it can be set to a size slightly longer or shorter than the ladder according to the height of the wind turbine tower to be maintained.
[0044] The guide rail is formed as a groove 2-1 with an opening facing forward, and the groove is preferably arranged to be through from top to bottom. The groove includes a rear wall 2-4, a left side wall 2-5, and a right side wall 2-6. Long strip holes 2-2 are evenly distributed longitudinally at intervals on the rear wall. When an operator falls accidentally, the buckle of the full-body safety belt tied to the operator is connected to the buckle in the anti-fall lock installed on the guide rail, and the lock tongue in the anti-fall lock is engaged with the long strip hole to play a role in preventing the operator from falling.
[0045] The left and right side walls in the groove are respectively located on the left and right sides of the rear wall, and the two side walls are parallel to each other and perpendicular to the rear wall. The left side wall forms a left bending portion 2-7 bent to the right at the end away from the rear wall, and the left bending portion is perpendicular to the left side wall and parallel to the rear wall; the right side wall forms a right bending portion 2-8 bent to the left at the end away from the rear wall, and the right bending portion is perpendicular to the right side wall and parallel to the rear wall. There is a gap between the right end of the left bending portion and the left end of the right bending portion, forming an opening of the groove facing forward, so that the width of the opening can be installed with an anti-fall lock. Among them, the thickness of the groove is adapted to the diameter of the wheel in the anti-fall lock, so that the anti-fall lock can move up and down in the groove without obstacles.
[0046] In addition, a left positioning hole is provided at the junction of the left side wall and the left bending portion, and a right positioning hole is provided at the junction of the right side wall and the right bending portion, and the two positioning holes are symmetrically arranged. The positioning hole 2-3 is in the shape of an elongated cylinder as a whole, is through-connected, and is provided with a thread inside.
[0047] The ladder of the wind turbine tower needs to be set at different heights in different environments, and the length of the guide rail needs to be adapted to the ladder. And when the ladder height is high, it is difficult for the guide rail formed by a single component to match the ladder height. Therefore, the guide rail is usually set in a segmented form, that is, the guide rail is spliced by multiple sections of sub-guide rails. Therefore, it is necessary to consider the working performance of the connection structure between the sub-guide rails, such as the smoothness of the guide rail connection and the structural strength of the guide rail connection position.
[0048] The connection structure between the sub-guide rails in the anti-fall device provided in this specific embodiment is as follows Figure 4 Each section of the sub-rails is connected by a rail connection assembly 6; the rail connection assembly 6 includes a back plate 6-1, a positioning pin 6-2 and a bolt 6-3.
[0049] The back plate is a rectangular flat plate, whose width is slightly smaller than the width of the guide rail, and the length can be a length suitable for installation. There is an opening at each of the upper and lower ends of the back plate, and the opening at the lower end of the back plate is fixedly connected to the long hole at the upper end of the lower sub-guide rail. The back plate extends longitudinally upward along the upper end of the lower sub-guide rail, and then the longitudinally extending part of the back plate is fitted together with the upper sub-guide rail, so that the long hole at the lower end of the upper sub-guide rail is aligned with the opening at the upper end of the back plate, and the bolt is passed through the long hole at the lower end of the upper sub-guide rail and the opening at the upper end of the back plate and then matched with the nut. The back plate is used to prevent the deformation of each sub-guide rail along the front-to-back direction and to strengthen the strength of the connection.
[0050] At the same time, the positioning pin is fixedly connected to the positioning hole of the lower sub-rail, and then the positioning pin is plugged and connected to the positioning hole of the upper sub-rail, so that the upper and lower end surfaces of the two sub-rails are seamlessly fitted to avoid any unnecessary shaking or displacement. The positioning pin is used to prevent the deformation of each sub-rail in the left and right directions and to strengthen the strength of the connection. Among them, the positioning pin is short and thin, with a small diameter and a cylindrical shape, which can prevent the positioning pin from accidentally falling out.
[0051] In the segmented guide rail, two adjacent sections of sub-guide rails are threadedly connected to the long holes on the guide rail through the guide rail connection assembly 6. In this case, when connecting the guide rail and the ladder crossbar, it is easy for the long holes required for connecting the guide rail and the ladder crossbar to be occupied when connecting the two adjacent sections of sub-guide rails. In this case, if the guide rail and the ladder crossbar are not fixed at the occupied long holes, but the guide rail and the ladder crossbar are directly connected at the next ladder crossbar, this will lead to an unreasonable position of the connection point, and the guide rail as a whole is prone to deformation, which will reduce the stability and safety of the guide rail installed on the ladder.
[0052] In particular, the end of the guide rail must be firmly connected to the ladder crossbar, because when the operator climbs from the ground to the starting end of the guide rail, an external force is suddenly applied to the guide rail, and the operator at the end of the guide rail will make larger movements when performing operations, which requires the end of the guide rail to be firmly connected to the ladder.
[0053] In order to better fix the guide rail on the ladder when the long hole at the end of the sub-guide rail is occupied, this specific embodiment provides a guide rail fixing member with a changeable installation direction, through which the guide rail is longitudinally fixed to the ladder crossbar.
[0054] Specifically, the structure of the guide rail fixing member 5 is as follows: Figure 5 As shown, it preferably includes a clamping part and a fixing part, the clamping part 5-1 includes a bottom wall 5-5, an upper wall 5-6, and a lower wall 5-7, and a through hole is provided at the lower end of the left wall, and its size is set to a size that a bolt can pass through. The fixing part includes a square washer 5-2, a locking nut 5-3, and a square neck bolt 5-4.
[0055] The holding portion is formed into a slot extending in the left-right direction, the slot has a forward opening, and the crossbar of the ladder extends backward from the opening position of the slot and is accommodated in the slot.
[0056] The slot includes a first side wall 5-6 and a second side wall 5-7 at the upper and lower sides, and a bottom wall 5-5 at the rear, i.e., the bottom of the slot. A through hole is provided at one end of the bottom wall close to the second side wall 5-7, and the rod of the square neck bolt 5-4 passes through the long hole of the guide rail and then extends backward through the through hole of the slot and then passes through the through hole, and is threadedly matched with the locking nut 5-3 located at the rear of the bottom wall.
[0057] In this way, the bolt, the first side wall of the groove, and the bottom wall of the groove enclose a space that is adapted to the shape and size of the ladder crossbar, and the guide rail is fixed to the ladder crossbar by tightening the bolt and limiting the bolt, the bottom wall of the groove, and the first side wall of the groove. This fixing method is easy to operate and firmly fixed.
[0058] Furthermore, since the square neck bolt 5-4 and the clamping part 5-1 are connected by a through hole, the two can rotate relative to each other. The clamping part can be coordinated with the ladder in an upward direction or in a downward direction. The direction of the clamping part can be flexibly adjusted according to whether the actual long hole is occupied to meet the fixing requirements in different situations, thereby improving the flexibility of the installation of the clamping part and the ladder cross bar.
[0059] For example, Figure 5 As shown, when the long hole on the guide rail above the ladder crossbar is occupied when connecting two adjacent sub-guide rails, the clamping part can be oriented upward to cooperate with the ladder, that is, the first side wall 5-6 is located above the second side wall 5-7. At this time, the first side wall of the clamping part is completely in contact with the upper surface of the crossbar, the bottom wall is completely in contact with the rear surface of the crossbar, the rod of the square neck bolt is completely in contact with the lower surface of the crossbar, and the outer side surface of the rear wall of the guide rail is completely in contact with the front surface of the crossbar.
[0060] The ladder crossbar is located above the screw rod. Figure 6 As shown, when the long hole on the guide rail below the ladder crossbar is occupied when connecting two adjacent sub-guide rails, the clamping part can be oriented downward to cooperate with the ladder, that is, the first side wall 5-6 is located below the second side wall 5-7. At this time, the first side wall of the clamping part is completely in contact with the lower surface of the crossbar, the bottom wall is completely in contact with the rear surface of the crossbar, the rod of the square neck bolt is completely in contact with the upper surface of the crossbar, and the outer side surface of the rear wall of the guide rail is completely in contact with the front surface of the crossbar.
[0061] Furthermore, the dimension of the first side wall 5-6 in the front-to-back direction is slightly shorter than that of the second side wall 5-7, that is, when extending forward from the bottom wall of the groove, the distance of the first side wall 5-6 extending forward is shorter than that of the second side wall 5-7, so that it is easy to distinguish the two side walls and facilitate positioning when installing the guide rail and the ladder crossbar. At the same time, the second side wall 5-7 abuts against the rear wall 2-4 of the guide rail, which improves the stability and strength of the installation.
[0062] In addition, the square washer 5-2 is placed between the rear side of the clamping part and the locking nut 5-3, which increases the force-bearing area and prevents the clamping part from being damaged due to concentrated force.
[0063] In this specific implementation, the anti-fall lock is an anti-fall device, which is installed on the guide rail. The structure of the anti-fall lock can be implemented using existing technology.
[0064] A preferred structure of the anti-fall lock can be referred to Figure 6 The anti-fall lock includes a wheel 3-1, a mounting seat 3-2, a guide wheel 3-3, a housing 3-4, a first shaft 3-5, a second shaft 3-6, a buckle 3-7, a first protrusion 3-8, a centrifugal lock 3-9, an annular protrusion 3-10, a second protrusion 3-11, and a lock tongue 3-12.
[0065] like Figure 7 As shown, the anti-fall lock has two rows of parallel guide wheels 3-3, and the two rows of guide wheels are respectively arranged at intervals between the left bending portion 27 and the right bending portion 2-8 of the guide rail. The first shaft 3-5 passes through the mounting seat 3-2 and is connected to the wheel 3-1. The buckle 3-7 is connected to the full-body safety belt of the operator. When the operator at a height accidentally falls from the guide rail, the wheel and the first shaft are driven to rotate downward. The centrifugal lock 3-9 on the first shaft includes two centrifugal blocks, such as Figure 8 As shown, the centrifugal block performs centrifugal motion and meshes with the annular protrusion 3-10 on the inner wall of the housing, thereby driving the first protrusion 3-8 to move toward the second protrusion 3-11 installed on the inner wall of the mounting seat hole. The second protrusion blocks the first protrusion from continuing to move, so that the first shaft no longer rotates. The second shaft 3-6 is pivotally connected to the mounting seat 3-2. When a person falls, the buckle 3-7 is pulled downward, thereby causing the lock tongue 3-12 to pop out. Figure 9-10 As shown, it is stuck in the long hole on the guide rail, playing a locking role to prevent people from falling and protect the lives of operators.
[0066] When the anti-falling lock moves up and down along the guide rail, in order to prevent the anti-falling lock from accidentally falling off the guide rail, an anti-falling component 4 is respectively provided at the upper and lower ends of the guide rail. Fig.11As shown. The anti-drop assembly 4 includes a hexagonal bolt 4-1, a flat washer 4-2, a nut 4-3, and a main body 4-4. The main body is formed as a groove with an opening facing backwards, and the groove includes a front wall 4-5, a left side wall 4-6, and a right side wall 4-7. The length of the front wall in the left-right direction is the width of the opening in the guide rail, and there is a through hole in the middle of the front wall.
[0067] The left side wall 4-6 and the right side wall 4-7 in the groove are respectively located on the left and right sides of the front wall, and are parallel to each other and perpendicular to the front wall. The left side wall forms a left bending portion 4-8 bent to the right at the end away from the front wall, and the left bending portion is perpendicular to the left side wall and parallel to the front wall; the right side wall forms a right bending portion 4-9 bent to the left at the end away from the front wall, and the right bending portion is perpendicular to the right side wall and parallel to the front wall. The bending portion increases the contact area between the anti-slip assembly and the groove in the guide rail, thereby improving the anti-slip performance.
[0068] In addition, a left anti-slip component is provided at the joint of the left side wall and the left bent portion, and a right anti-slip component is provided at the joint of the right side wall and the right bent portion. The two anti-slip components are symmetrically arranged. The anti-slip components are hollow cylindrical and usually have a certain elasticity so as to play a buffering role when the anti-fall lock is about to fall off the track to prevent the anti-fall lock from being damaged by impact.
[0069] When installing the anti-slip assembly at the lower end of the guide rail, place the anti-slip assembly into the groove at the front of the guide rail from bottom to top, align the opening of the front wall of the anti-slip assembly with the long hole at the bottom of the guide rail, and then fit the bolt through the through hole of the front wall and the long hole at the bottom of the guide rail to the nut, and tighten the nut to secure the anti-slip assembly to the guide rail. A flat washer is used between the hexagonal bolt and the through hole of the anti-slip assembly to increase the force-bearing area and improve the anti-slip property of the anti-slip assembly when the anti-fall lock contacts the anti-slip assembly. The same is true for installing the anti-slip assembly at the upper end of the guide rail. You only need to place the anti-slip assembly into the guide rail groove from top to bottom.
[0070] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only the specific implementation method of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.
Claims
1. A fall prevention device, characterized in that: include: A guide rail, the guide rail comprising at least two sections of sub-guide rails connected in the vertical direction, a positioning pin is provided at one end of the sub-guide rail, and a positioning hole is provided at the other end, the positioning pin is plugged and connected with the positioning hole in the vertical direction to connect the sub-guide rails; a plurality of long holes are provided on each section of the sub-guide rail along the vertical direction; A guide rail fixing member, comprising a clamping portion, the clamping portion matches the shape of a ladder so as to be clamped on the ladder; and a fixing portion, the fixing portion passes through the long strip hole of the guide rail and the clamping portion so as to fix the guide rail and the ladder together; wherein the fixing portion has a loose state and a fastened state, when the fixing portion is in the loose state, the clamping portion can rotate relative to the guide rail; when the fixing portion is in the fastened state, the fixing portion fixes the clamping portion to the guide rail; An anti-falling lock is slidably arranged on the guide rail, and the anti-falling lock includes a locking tongue that cooperates with the long strip hole.
2. The anti-fall device according to claim 1, characterized in that: The clamping portion is formed as a groove-shaped component, which is arranged toward the guide rail; The fixing part comprises a bolt and a nut. The bolt passes through the guide rail and the clamping part in sequence. The nut is arranged at the end of the bolt, so as to squeeze and fix the fixing part and the guide rail.
3. The anti-fall device according to claim 2, characterized in that: A through hole is provided at the bottom of the groove of the groove-shaped component of the clamping portion, the bolt passes through the through hole, and the ladder is clamped in a space surrounded by the bolt and the groove-shaped component.
4. The anti-fall device according to claim 1, characterized in that: In two connected sub-guide rails, one sub-guide rail is provided with a positioning pin extending in a vertical direction, and the other sub-guide rail is provided with a positioning hole aligned with the positioning pin.
5. The anti-fall device according to claim 1, characterized in that: The anti-fall device also includes a back plate, which is arranged on the back side of the two connected sub-guide rail ends, the upper end of the back plate is fixed to the upper sub-guide rail through the long holes, and the lower end of the back plate is fixed to the lower sub-guide rail through the long holes.
6. The anti-fall device according to claim 1, characterized in that: The guide rail is a groove-shaped structure, the groove opening of which is arranged forward, and the groove opening is provided with a bending portion extending from the groove side wall to the middle of the groove opening; The elongated holes are arranged on the groove bottom of the groove structure of the guide rail.
7. The anti-fall device according to claim 1, characterized in that: The anti-fall lock comprises a guide wheel, and the guide wheel is slidably arranged in the groove structure of the guide rail; A lock tongue, the lock tongue being matched with the elongated hole; A buckle that mates with a buckle on the seat belt.
8. The anti-fall device according to claim 1, characterized in that: The end of the guide rail is provided with an anti-slip assembly, which is a groove-shaped structure, with a groove opening facing backwards, and the groove opening is provided with a bending portion extending from the groove side wall to the middle of the groove; The anti-slip assembly comprises a main body, which matches the groove structure of the guide rail so as to be clamped on the guide rail; The fixing part includes a bolt, a nut and a flat washer. The bolt passes through the guide rail and the main body in sequence, and the nut is arranged at the end of the bolt, so as to squeeze and fix the main body and the guide rail.
9. The anti-fall device according to claim 1, characterized in that: The ladder includes a horizontal bar extending in a vertical direction and providing a means for people to climb, and a vertical bar; The cross bar is connected to the clamping portion of the guide rail fixing piece.
10. A wind power tower climbing system, characterized in that: include A ladder, which is flexibly arranged at a suitable position in the wind turbine tower according to actual climbing needs; And a fall prevention device, arranged on the ladder, the fall prevention device is as described in any one of claims 1-7.