Anti-falling guide rail device
By employing a locking component on the slider and a moving column connected by a spring in the anti-fall guide rail device, the problem of inconvenient guide wheel replacement is solved, enabling quick replacement of the guide wheel and positioning shaft, and reducing maintenance complexity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI MIAOTONG ELECTRIC CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-05-05
AI Technical Summary
In existing fall arrestor rail devices, the guide wheels are fixed with screws, which requires the screws to be removed during replacement, increasing maintenance complexity, especially inconvenient to operate at heights or in confined spaces.
The slider is equipped with a mounting slot and a locking component. The guide wheel and positioning shaft can be quickly replaced by a moving column connected by a spring. The compression and recovery characteristics of the spring enable convenient installation.
It simplifies the replacement process of guide wheels and positioning shafts, improves replacement efficiency, and reduces maintenance difficulty, making it more convenient to operate, especially at heights or in confined spaces.
Smart Images

Figure CN224193961U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of guide rail anti-fall devices, and in particular to anti-fall guide rail devices. Background Technology
[0002] In existing technologies, fall arrest devices are mostly used in places such as stairs, corridors, platforms, and machine rooms to prevent people or objects from falling from heights.
[0003] Existing fall arrestor rail devices typically feature self-locking sliders on the rails. These sliders include guide wheels made of engineering plastic, designed to guide the slider smoothly along the rails and prevent objects or people from falling. However, after prolonged use, the guide wheels are prone to wear due to friction with the rails, leading to poor sliding or malfunction. To restore the slider's normal function, the guide wheels need to be replaced. Since guide wheels in existing technologies are usually fixed with screws, replacement requires removing the screws, a time-consuming and potentially damaging process that increases maintenance complexity. This is especially true when performing maintenance at heights or in confined spaces, where removing and installing screws can be particularly inconvenient. Utility Model Content
[0004] The purpose of this utility model is to provide a fall-prevention guide rail device to solve the problem mentioned in the background art that the guide wheels in the prior art are usually fixed by screws, and the replacement requires disassembling the screws, which makes replacement inconvenient.
[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:
[0006] Fall protection rail device, including
[0007] A guide rail rod, on which a slider is slidably connected, and a mounting slot is provided on one side wall of the slider, and a locking component is provided on the mounting slot;
[0008] The slider has several square slots symmetrically opened on both sides. A positioning shaft is provided inside the square slot. A guide wheel is rotatably connected to the outer wall of the positioning shaft. Two sets of connecting components are symmetrically provided at both ends of the guide wheel. A first cavity is opened on the slider. A second cavity is opened on the inner wall of the square slot and communicates with the first cavity. A spring is fixedly connected to the inner wall of the first cavity. A movable column is fixedly connected to one end of the spring. One end of the movable column is connected to the positioning shaft through the connecting components, and the movable column is slidably disposed inside the second cavity.
[0009] Preferably, the locking assembly includes two connecting plates symmetrically arranged on both sides of the mounting slot, a connecting shaft is fixedly connected between the two connecting plates, and a self-locking block is rotatably connected to the outer wall of the connecting shaft.
[0010] Preferably, the self-locking block has a through hole in its side wall, a connecting ring is provided inside the through hole, a safety rope is fixedly connected to the outer wall of the connecting ring, and a safety buckle is fixedly connected to the lower end of the safety rope.
[0011] Preferably, a cover plate is fixedly connected to the first cavity, and an opening is formed through the upper wall of the cover plate. A toggle block is slidably connected inside the opening, and the lower end of the toggle block is fixedly connected to the upper wall of the moving column.
[0012] Preferably, the connecting assembly includes two slotted cylinder seats fixedly disposed at one end of the movable column and on the inner wall of the square slot. A plurality of slots are provided on one side wall of the slotted cylinder seat, and insert rods are provided inside the slots. Insert shafts are inserted into the slots of the slotted cylinder seat. The two insert shafts are symmetrical and fixedly disposed at both ends of the positioning shaft. The plurality of insert rods are all fixedly disposed on the outer wall of the insert shafts.
[0013] Compared with the prior art, this utility model has the following advantages:
[0014] When the guide wheel and positioning shaft need to be replaced, the operator can move the moving column into the first cavity by pressing it. At this time, the spring is compressed, and the distance between the two sets of connecting components increases, making it easier for the operator to place the new guide wheel and positioning shaft between the two connecting components. At this time, the moving column is no longer pressed, and the spring returns to its original state. Therefore, the two sets of connecting components facilitate the assembly of the new guide wheel and positioning shaft, making the installation convenient and efficient. Attached Figure Description
[0015] Figure 1 A schematic diagram of the overall external structure of the fall-prevention guide rail device;
[0016] Figure 2 A partial cross-sectional structural diagram of the fall-prevention guide rail device;
[0017] Figure 3 A partial disassembly diagram of the anti-fall guide rail device;
[0018] Figure 4 Fall prevention guide rail device Figure 2 Enlarged view of a portion of point A in the middle.
[0019] In the diagram: 1. Guide rail rod; 2. Slider; 3. Positioning shaft; 4. Guide wheel; 5. Spring; 6. Moving column; 7. Connecting plate; 8. Connecting shaft; 9. Self-locking block; 10. Connecting ring; 11. Safety rope; 12. Safety buckle; 13. Cover plate; 14. Actuating block; 15. Slotted cylinder seat; 16. Insert rod; 17. Insert shaft. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example 1:
[0022] Please see Figures 1-4 As shown, this utility model is a fall-prevention guide rail device, including...
[0023] A guide rail rod 1, on which a slider 2 is slidably connected, and a mounting slot is provided on one side wall of the slider 2, and a locking component is provided on the mounting slot;
[0024] The slider 2 has several square slots symmetrically opened on both sides. A positioning shaft 3 is provided inside the square slot. A guide wheel 4 is rotatably connected to the outer wall of the positioning shaft 3. Two sets of connecting components are symmetrically provided at both ends of the guide wheel 4. A first cavity is opened on the slider 2. A second cavity communicating with the first cavity is opened on the inner wall of the square slot. A spring 5 is fixedly connected to the inner wall of the first cavity. A moving column 6 is fixedly connected to one end of the spring 5. One end of the moving column 6 is connected to the positioning shaft 3 through the connecting components, and the moving column 6 is slidably disposed inside the second cavity.
[0025] As can be seen from the above, when it is necessary to replace the guide wheel 4 and the positioning shaft 3, the operator can move the moving column 6 to the inside of the first cavity by pressing the moving column 6. At this time, the spring 5 is compressed, and the distance between the two sets of connecting components increases. This makes it easier for the operator to place the new guide wheel 4 and the positioning shaft 3 between the two connecting components. At this time, the moving column 6 is no longer pressed, and the spring 5 returns to its original state. Therefore, the two sets of connecting components facilitate the assembly of the new guide wheel 4 and the positioning shaft 3, making the installation convenient and efficient.
[0026] Example 2:
[0027] A guide rail rod 1, on which a slider 2 is slidably connected, and a mounting slot is provided on one side wall of the slider 2, and a locking component is provided on the mounting slot;
[0028] The slider 2 has several square slots symmetrically opened on both sides. A positioning shaft 3 is provided inside the square slot. A guide wheel 4 is rotatably connected to the outer wall of the positioning shaft 3. Two sets of connecting components are symmetrically provided at both ends of the guide wheel 4. A first cavity is opened on the slider 2. A second cavity communicating with the first cavity is opened on the inner wall of the square slot. A spring 5 is fixedly connected to the inner wall of the first cavity. A moving column 6 is fixedly connected to one end of the spring 5. One end of the moving column 6 is connected to the positioning shaft 3 through the connecting components, and the moving column 6 is slidably disposed inside the second cavity.
[0029] refer to Figure 2 As shown, the locking assembly includes two connecting plates 7 symmetrically arranged on both sides of the mounting slot, a connecting shaft 8 fixedly connected between the two connecting plates 7, and a self-locking block 9 rotatably connected to the outer wall of the connecting shaft 8.
[0030] The self-locking block 9 has a through hole in its side wall, and a connecting ring 10 is provided inside the through hole. A safety rope 11 is fixedly connected to the outer wall of the connecting ring 10, and a safety buckle 12 is fixedly connected to the lower end of the safety rope 11.
[0031] As can be seen from the above, during use, the personnel connect the main body of the slider 2 through the safety buckle 12. When the personnel move upward, the safety rope 11 drives the self-locking block 9 to rotate and prevents the end of the self-locking block 9 from pressing against the outer wall of the guide rail rod 1, which facilitates the movement of the slider 2. When the personnel fall, the self-locking block 9 is further driven to rotate in the opposite direction under the action of gravity and keeps the end of the self-locking block 9 in contact with the outer wall of the guide rail rod 1. Under the action of friction, a self-locking state is easily achieved.
[0032] Example 3:
[0033] A guide rail rod 1, on which a slider 2 is slidably connected, and a mounting slot is provided on one side wall of the slider 2, and a locking component is provided on the mounting slot;
[0034] The slider 2 has several square slots symmetrically opened on both sides. A positioning shaft 3 is provided inside the square slot. A guide wheel 4 is rotatably connected to the outer wall of the positioning shaft 3. Two sets of connecting components are symmetrically provided at both ends of the guide wheel 4. A first cavity is opened on the slider 2. A second cavity communicating with the first cavity is opened on the inner wall of the square slot. A spring 5 is fixedly connected to the inner wall of the first cavity. A moving column 6 is fixedly connected to one end of the spring 5. One end of the moving column 6 is connected to the positioning shaft 3 through the connecting components, and the moving column 6 is slidably disposed inside the second cavity.
[0035] Depend on Figures 3-4It is known that a cover plate 13 is fixedly connected to the first cavity, and an opening is provided through the upper wall of the cover plate 13. A toggle block 14 is slidably connected inside the opening, and the lower end of the toggle block 14 is fixedly connected to the upper wall of the moving column 6.
[0036] The connecting assembly includes two slotted cylinder seats 15 fixedly disposed at one end of the movable column 6 and on the inner wall of the square slot. Several slots are provided on one side wall of the slotted cylinder seat 15. Inserted rods 16 are provided inside the slots. Inserted shafts 17 are inserted and connected inside the cavity of the slotted cylinder seat 15. The two inserted shafts 17 are symmetrical and fixedly disposed at both ends of the positioning shaft 3. Several inserted rods 16 are fixedly disposed on the outer wall of the inserted shafts 17.
[0037] As can be seen from the above, specifically, the staff can take advantage of the feature of the insert rod 16 inside the bayonet to facilitate the installation of the positioning shaft 3 with the two sets of connecting components, making the operation convenient and quick.
[0038] All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and will not be described in detail here. The contents not described in detail in this specification are all prior art known to those skilled in the art.
[0039] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.
[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0041] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0043] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A fall-prevention guide rail device, characterized in that: include A guide rail (1) is slidably connected to a slider (2), and a mounting slot is provided on one side wall of the slider (2), and a locking component is provided on the mounting slot; The slider (2) has several square slots symmetrically opened on both sides. A positioning shaft (3) is provided inside the square slot. A guide wheel (4) is rotatably connected to the outer wall of the positioning shaft (3). Two sets of connecting components are symmetrically provided at both ends of the guide wheel (4). A first cavity is opened on the slider (2). A second cavity is opened on the inner wall of the square slot and communicates with the first cavity. A spring (5) is fixedly connected to the inner wall of the first cavity. A moving column (6) is fixedly connected to one end of the spring (5). One end of the moving column (6) is connected to the positioning shaft (3) through the connecting component. The moving column (6) is slidably disposed inside the second cavity.
2. The anti-fall guide rail device according to claim 1, characterized in that: The locking assembly includes two connecting plates (7) symmetrically arranged on both sides of the mounting slot, and a connecting shaft (8) is fixedly connected between the two connecting plates (7). A self-locking block (9) is rotatably connected to the outer wall of the connecting shaft (8).
3. The anti-fall guide rail device according to claim 2, characterized in that: The self-locking block (9) has a through hole in its side wall, and a connecting ring (10) is provided inside the through hole. A safety rope (11) is fixedly connected to the outer wall of the connecting ring (10), and a safety buckle (12) is fixedly connected to the lower end of the safety rope (11).
4. The anti-fall guide rail device according to claim 1, characterized in that: A cover plate (13) is fixedly connected to the first cavity. The upper wall of the cover plate (13) has a through opening. A toggle block (14) is slidably connected inside the through opening. The lower end of the toggle block (14) is fixedly connected to the upper wall of the moving column (6).
5. The anti-fall guide rail device according to claim 1, characterized in that: The connecting assembly includes two slotted cylinder seats (15) fixedly disposed at one end of the movable column (6) and the inner wall of the square slot. Several slots are provided on one side wall of the slotted cylinder seat (15), and insert rods (16) are provided inside the slots. Insert shafts (17) are inserted and connected inside the cavity of the slotted cylinder seat (15). The two insert shafts (17) are symmetrical and fixedly disposed at both ends of the positioning shaft (3). Several insert rods (16) are fixedly disposed on the outer wall of the insert shafts (17).