Falling protector and falling prevention device for flexible track
By introducing components such as a fixed sleeve, slider, connecting rod, connecting plate, and scraper into the fall arrestor, the problem of cleaning dust and dirt on the flexible track was solved, ensuring the stable passage and safety of the device.
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
- 2026-05-12
AI Technical Summary
Existing flexible track fall arrestors have difficulty quickly clearing dust and soil adhering to both sides of the track during the lifting and adjustment process, which affects the device's passability and may even cause it to derail.
A fall arrestor was designed, comprising a fixed sleeve, a slider, a connecting rod, a connecting plate, and a scraper. These components automatically scrape and clean dust and dirt during the lifting process, and guide it out through a diversion plate. The snap-fit structure of the wedge and locking block enables quick installation and disassembly.
It enables rapid cleaning of dust and soil on both sides of the flexible track during the lifting process, avoiding the impact on the device's passability and the risk of derailment, thus improving the safety and stability of use.
Smart Images
Figure CN224220624U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of high-altitude operations, specifically a fall arrestor and fall prevention device for flexible tracks. Background Technology
[0002] In the field of high-altitude operations, especially in work environments involving flexible tracks, fall arrest devices are important equipment to ensure the safety of workers. Due to their flexibility and adaptability, flexible tracks are widely used in various high-altitude work scenarios, such as construction, bridge maintenance, and high-altitude cleaning. In the event of an accidental fall, the fall arrest device can lock the worker on the track through a self-locking fall arrest device to prevent the worker from falling freely.
[0003] Chinese utility model patent CN222324150U discloses a fall arrestor and fall prevention device for a flexible track. The flexible track uses a support component to limit swing and forms a node at the connection between the support component and the flexible track. The fall arrestor includes a pair of meshing gear shafts rotatably mounted in a housing. Each gear shaft is provided with adjacent first curved surfaces and second curved surfaces. A temporary clearance surface is also provided on the outer periphery of the gear shaft. A torsion spring coaxially arranged with the gear shaft has one free end fixedly connected to the housing and the other free end fixedly connected to the end of the gear shaft. Under the preload of the torsion spring, the two first curved surfaces form a track channel adapted to the flexible track. After the gear shaft is driven to rotate by an external force, the torsion spring is released, and the two second curved surfaces form a passage for passing through the node. The two temporary clearance surfaces form a temporary passage for passing through the support component.
[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: During long-term use, dust and dirt may adhere to both sides of the flexible track. It is difficult to quickly scrape and clean the accumulated dust and dirt on both sides of the flexible track during the lifting and adjustment process, which will affect the passage of the device during lifting and use, and may even lead to the danger of derailment, thereby affecting the use of the device and causing great inconvenience.
[0005] To address the problems raised in the background art, those skilled in the art have proposed a fall arrestor and fall prevention device for flexible tracks. Utility Model Content
[0006] To address the aforementioned technical problems, this utility model provides a fall arrestor and fall prevention device for flexible tracks, thereby solving the problem that existing fall arrestors are unable to quickly scrape and clean up the accumulated dust and dirt on both sides of the flexible track during the lifting and adjustment process.
[0007] A fall arrestor for a flexible track includes a flexible track body and a fall arrestor body slidably disposed on the outside of the flexible track body.
[0008] The fall arrester body has fasteners on its upper and lower sides, and insert rods on both sides of the fall arrester body. The insert rods are fixedly connected to the fall arrester body through the fasteners. A fixing sleeve is fixedly connected to one side of the insert rod. Slider blocks are slidably arranged on both sides of the fixing sleeve. Two spaced grooves are opened on one side of the fixing sleeve. A connecting rod is fixedly connected to the side wall of the slider. A connecting plate is fixedly installed on the side wall of the connecting rod. A scraper is fixedly installed on the upper side of the connecting plate. The scraper contacts the two side walls of the flexible track body.
[0009] Preferably, two axially spaced grooves are provided on the same side wall of the fixed sleeve, and the two sliders slide into the corresponding grooves through their respective connecting rods, thereby realizing independent guidance and synchronous cleaning of the scrapers on both sides.
[0010] Preferably, the fixed sleeve has several evenly distributed through holes on one side, the slider has an installation groove on its side wall, a locking block is slidably disposed in the installation groove, the locking block passes through the through holes and is slidably disposed therewith, and a compression spring is disposed in the installation groove, with the two ends of the compression spring connected to the side wall of the locking block and the inner side wall of the installation groove, respectively.
[0011] Preferably, a diversion plate is fixedly installed on the side wall of the connecting plate, and the side wall of the diversion plate is provided with an inclined surface.
[0012] Preferably, the fastening element includes wedges fixedly installed on both sides of the insertion rod, a moving block disposed on the side wall of the mounting plate disposed in the body of the fall arrester, a locking block fixedly installed on the side wall of the moving block, and a return spring disposed on the side wall of the mounting plate, wherein the two ends of the return spring are respectively connected to the side wall of the moving block and the side wall of the mounting plate.
[0013] Preferably, a fixing plate is fixedly installed between the inner side walls of the fall arrester body, and a vertical plate is fixedly connected to the upper side of the fixing plate. A limit rod is fixedly connected to the side wall of the vertical plate. The mounting plate passes through the limit rod and slides with it. A tension spring is sleeved on the outer side of the limit rod. The two ends of the tension spring are respectively connected to the side wall of the vertical plate and the side wall of the mounting plate. The elastic coefficient of the tension spring is greater than the elastic coefficient of the reset spring.
[0014] Preferably, the side wall of the fall arrestor body is provided with a through groove, and the side wall of the mounting plate is fixedly connected with a toggle plate, one end of the toggle plate extending out of the through groove and slidably disposed therewith.
[0015] Preferably, a limiting plate is fixedly installed on the side wall of the limiting rod.
[0016] A fall arrest device includes a structure for work at height, a flexible track body fixedly installed on the side wall of the structure, a plurality of evenly distributed support blocks fixedly installed on the side wall of the structure, support rods fixedly installed on the side wall of the support blocks, the other end of the support rods being fixedly connected to the flexible track, and a fall arrester body as described above for the flexible track body being installed on the flexible track body.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. The fixed sleeve, slider, connecting rod, connecting plate and scraper of this utility model can facilitate the automatic scraping and cleaning of dust and dirt adhering to both sides of the flexible track during the lifting and moving of the fall arrestor. It is difficult to quickly scrape and clean the dust and dirt adhering to both sides of the flexible track during the lifting and adjustment process, which will affect the passage of the device during the lifting and use, and may even cause the danger of derailment. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the scraper structure in this utility model;
[0021] Figure 3 This is a schematic diagram of the slider structure in this utility model;
[0022] Figure 4 This is a schematic diagram of the structure of the fall arrestor body in this utility model;
[0023] Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle;
[0024] Figure 6 This is a schematic diagram of the structure of the toggle plate in this utility model.
[0025] In the picture:
[0026] 1. Flexible track body; 2. Fall arrestor body; 21. Insert rod; 22. Fixing sleeve; 23. Slider; 24. Slide groove; 25. Connecting rod; 26. Connecting plate; 27. Scraper; 28. Diverting plate; 29. Inclined surface; 3. Through hole; 31. Mounting groove; 32. Locking block; 33. Compression spring; 4. Fastener; 41. Wedge block; 42. Mounting plate; 43. Moving block; 44. Locking block; 45. Return spring; 5. Fixing plate; 51. Vertical plate; 52. Limiting rod; 53. Tension spring; 54. Limiting plate; 6. Through groove; 7. Actuating plate; 8. Support block; 81. Support rod. Detailed Implementation
[0027] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0028] Example 1: As shown in the attached document Figure 1 To be continued Figure 6 As shown: This utility model provides a fall arrestor for flexible tracks, including a flexible track body 1 and a fall arrestor body 2 that is slidably disposed on the outside of the flexible track body 1;
[0029] The fall arrester body 2 is provided with buckle 4 on the upper and lower sides. The fall arrester body 2 is provided with insert rod 21 on both sides. The insert rod 21 is fixedly connected to the fall arrester body 2 through the buckle 4. A fixing sleeve 22 is fixedly connected to one side of the insert rod 21. The fixing sleeve 22 is slidably provided with sliders 23 on both sides. A groove 24 is opened on one side of the fixing sleeve 22. A connecting rod 25 is fixedly connected to the side wall of the slider 23. A connecting plate 26 is fixedly installed on the side wall of the connecting rod 25. A scraper 27 is fixedly installed on the upper side of the connecting plate 26. The scraper 27 contacts the two side walls of the flexible track body 1. The scraper 27 can automatically scrape and clean the dust and dirt adhering to both sides of the flexible track when the fall arrester rises or falls.
[0030] Preferably, a plurality of evenly distributed through holes 3 are provided on one side of the fixed sleeve 22, and an installation groove 31 is provided on the side wall of the slider 23. A locking block 32 is slidably disposed in the installation groove 31. The locking block 32 passes through the through holes 3 and is slidably disposed therewith. A compression spring 33 is provided in the installation groove 31. The two ends of the compression spring 33 are respectively connected to the side wall of the locking block 32 and the inner side wall of the installation groove 31. When in use, the connecting plate 26 can be moved by pressing the locking block 32 to drive it to slide and adjust to both sides. This makes it easy to adjust the scraper 27 in real time according to the width of the flexible track so that the scraper 27 can always be in close contact with the flexible track.
[0031] Furthermore, a diversion plate 28 is fixedly installed on the side wall of the connecting plate 26. The side wall of the diversion plate 28 is provided with an inclined surface 29. The diversion plate 28 and the inclined surface 29 facilitate the diversion of dust and soil that are scraped off. The inclined surface (29) of the diversion plate (28) is inclined in a direction towards the outside of the fall arrester body (2), so that the dust and soil scraped off are discharged to the outer space of the fall arrester's movement path under the action of gravity and the inclined surface, avoiding accumulation on the track surface or falling into the device, and reducing the inconvenience of falling into the fall arrester and affecting the use of the device.
[0032] As can be seen from the above, when using the device, after installing the fall arrestor on the outside of the flexible track, press the locking block 32 and pull the connecting plate 26. Adjust the position of the connecting plate 26 so that the scraper 27 can always be in contact with the flexible track. Then start the lifting device to move up and down. During the lifting and moving process, the scraper 27 can be used to quickly clean up dust or soil adhering to the outside of the flexible track.
[0033] Example 2: Based on Example 1, the buckle 4 includes wedges 41 fixedly installed on both sides of the insertion rod 21, a moving block 43 disposed on the side wall of the mounting plate 42 disposed within the fall arrestor body 2, a locking block 44 fixedly installed on the side wall of the moving block 43, and a return spring 45 disposed on the side wall of the mounting plate 42. The two ends of the return spring 45 are respectively connected to the side wall of the moving block 43 and the side wall of the mounting plate 42. During insertion, the inclined surface of the wedge 41 contacts the inclined surface of the locking block 44, squeezing... The locking block 44 is pressed to both sides so that the insertion rod 21 can be inserted inward. When it is inserted to the end point, the locking block 44 is driven by the return force of the return spring 45 to slide back, so that the locking block 44 is inserted into the tooth gap of the wedge block 41. At this time, the horizontal surface of the wedge block 41 is in contact with the horizontal surface of the locking block 44. When it is necessary to pull it outward, the locking block 44 locks and fixes the wedge block 41, thereby achieving the locking and fixing of the insertion rod 21 and realizing the quick fixing and installation of the insertion rod 21 and the fixing sleeve 22 as a whole.
[0034] Preferably, a fixing plate 5 is fixedly installed between the inner sidewalls of the fall arrester body 2, and a vertical plate 51 is fixedly connected to the upper side of the fixing plate 5. A limit rod 52 is fixedly connected to the sidewall of the vertical plate 51. A mounting plate 42 passes through the limit rod 52 and slides therewith. A tension spring 53 is sleeved on the outer side of the limit rod 52. The two ends of the tension spring 53 are respectively connected to the sidewall of the vertical plate 51 and the sidewall of the mounting plate 42. The elastic coefficient of the tension spring 53 is greater than the elastic coefficient of the return spring 45, so that during the movement of the wedge block 41 pressing the locking block 44, the wedge block 41 of the mounting plate 42 is pressed by the wedge block 44. The pressure will not affect the mounting plate 42, but will only squeeze and move the locking block 44. When it is necessary to quickly disassemble the insertion rod 21, pull the mounting plate 42 to both sides. The mounting plate 42 will drive the locking block 44 to slide to both sides, so that the wedge block 41 is separated from the locking block 44, and the locking of the wedge block 41 is released. At this time, the insertion rod 21 can be pulled out directly for quick disassembly. The side wall of the limiting rod 52 is fixedly installed with a limiting plate 54. The limiting plate 54 can facilitate the limiting treatment of the mounting plate 42 and reduce the possibility of it falling off.
[0035] Furthermore, the side wall of the fall arrestor body 2 is provided with a through groove 6, and the side wall of the mounting plate 42 is fixedly connected with a toggle plate 7. One end of the toggle plate 7 extends out of the through groove 6 and is slidably set therewith. The toggle plate 7 can be used to move the mounting plate 42 to both sides.
[0036] As can be seen from the above, before use, the insertion rod 21 is inserted into the body 2 of the fall arrester. During the insertion process, the inclined surface of the wedge block 41 contacts the inclined surface of the locking block 44, and the locking block 44 is squeezed to both sides so that the insertion rod 21 can be inserted inward. When it is inserted to the end point, the locking block 44 is driven by the return force of the return spring 45 to return and slide, so that the locking block 44 is inserted into the tooth gap of the wedge block 41. At this time, the horizontal surface of the wedge block 41 is in contact with the horizontal surface of the locking block 44. When it is necessary to pull it outward, the locking block 44 locks and fixes the wedge block 41, thereby achieving the locking and fixing of the insertion rod 21, and realizing the quick fixing and installation of the insertion rod 21 and the fixing sleeve 22 as a whole.
[0037] When it is necessary to disassemble, repair, or replace scraper 27, after removing the fall arrestor body 2, the actuating plate 7 can be pulled to both sides. The actuating plate 7 drives the mounting plate 42 to slide to both sides, causing the wedge 41 to separate from the locking block 44, releasing the locking of the wedge 41. At this time, the insert rod 21 can be pulled out directly to quickly disassemble the insert rod 21 and the fixing sleeve 22, thereby achieving quick disassembly of the scraper 27.
[0038] Example 3: Figure 6 As shown, a fall arrest device includes a structure for working at height. A flexible track body 1 is fixedly installed on the side wall of the structure. Several evenly distributed support blocks 8 are fixedly installed on the side wall of the structure. Support rods 81 are fixedly installed on the side wall of the support blocks 8. The other end of the support rods 81 is fixedly connected to the flexible track. The fall arrester body 2 in the above embodiment is installed on the flexible track body 1.
[0039] As can be seen from the above, by setting multiple support blocks 8 and support rods 81, the other end of the support rods 81 can contact the flexible track, which can improve the stability of the flexible track body 1 and reduce the possibility of personnel falling during the lifting process.
[0040] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.
[0041] 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.
[0042] 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 mechanical connection or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0043] 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.
[0044] 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. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, 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.
[0045] 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.
[0046] 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 arrestor for flexible tracks, characterized in that: It includes a flexible track body (1) and a fall arrestor body (2) that is slidably disposed on the outside of the flexible track body (1). The upper and lower sides of the fall arrester body (2) are provided with buckle pieces (4), and the sides of the fall arrester body (2) are provided with insert rods (21). The insert rods (21) are fixedly connected to the fall arrester body (2) through the buckle pieces (4). A fixed sleeve (22) is fixedly connected to one side of the insert rod (21). Slider blocks (23) are slidably provided on both sides of the fixed sleeve (22). Two spaced grooves (24) are opened on one side of the fixed sleeve (22). A connecting rod (25) is fixedly connected to the side wall of the slider (23). A connecting plate (26) is fixedly installed on the side wall of the connecting rod (25). A scraper (27) is fixedly installed on the upper side of the connecting plate (26). The scraper (27) is in contact with the two side walls of the flexible track body (1).
2. The fall arrestor for flexible tracks as described in claim 1, characterized in that: The fixed sleeve (22) has several evenly distributed through holes (3) on one side, and the slider (23) has an installation groove (31) on its side wall. A locking block (32) is slidably disposed in the installation groove (31). The locking block (32) passes through the through hole (3) and is slidably disposed therewith. A compression spring (33) is disposed in the installation groove (31). The two ends of the compression spring (33) are respectively connected to the side wall of the locking block (32) and the inner side wall of the installation groove (31).
3. The fall arrestor for flexible tracks as described in claim 1, characterized in that: A diversion plate (28) is fixedly installed on the side wall of the connecting plate (26), and the side wall of the diversion plate (28) is provided with a beveled part (29).
4. The fall arrestor for flexible tracks as described in claim 1, characterized in that: The buckle (4) includes wedges (41) fixedly installed on both sides of the plug rod (21), a mounting plate (42) set in the body of the fall arrester (2), a moving block (43) set on the side wall of the mounting plate (42), a locking block (44) fixedly installed on the side wall of the moving block (43), and a return spring (45) set on the side wall of the mounting plate (42). The two ends of the return spring (45) are respectively connected to the side wall of the moving block (43) and the side wall of the mounting plate (42).
5. The fall arrestor for flexible tracks as described in claim 4, characterized in that: A fixing plate (5) is fixedly installed between the inner side walls of the fall arrester body (2). A vertical plate (51) is fixedly connected to the upper side of the fixing plate (5). A limit rod (52) is fixedly connected to the side wall of the vertical plate (51). The mounting plate (42) passes through the limit rod (52) and slides with it. A tension spring (53) is sleeved on the outer side of the limit rod (52). The two ends of the tension spring (53) are respectively connected to the side wall of the vertical plate (51) and the side wall of the mounting plate (42). The elastic coefficient of the tension spring (53) is greater than the elastic coefficient of the reset spring (45).
6. The fall arrestor for flexible tracks as described in claim 5, characterized in that: The side wall of the fall arrestor body (2) is provided with a through groove (6), and the side wall of the mounting plate (42) is fixedly connected with a toggle plate (7). One end of the toggle plate (7) extends out of the through groove (6) and slides therewith.
7. The fall arrestor for flexible tracks as described in claim 6, characterized in that: A limiting plate (54) is fixedly installed on the side wall of the limiting rod (52).
8. A fall protection device, characterized in that: The structure includes a structure for which climbing operations are to be carried out. A flexible track body (1) is fixedly installed on the side wall of the structure. Several evenly distributed support blocks (8) are fixedly installed on the side wall of the structure. Support rods (81) are fixedly installed on the side wall of the support blocks (8). The other end of the support rods (81) is fixedly connected to the flexible track. A fall arrestor body (2) as described in any one of claims 1-7 is installed on the flexible track body (1).