A detachable fall arrest safety harness hanger

Abstract

The utility model relates to high altitude operation safety equipment technical field, specifically disclose a detachable anti -fall safety belt hanger, to solve the problem of poor adaptability, installation is restricted and low reusability of traditional suspension equipment under the fixed height scene. The hanger includes the support part, and the support part is composed of the first mounting column and the second mounting column of detachable connection, wherein the first mounting column end part is equipped with the thread cylinder, and the second mounting column end part is equipped with the screw rod of adaptation, and the overall length of support part can be adjusted through the cooperation of screw rod and thread cylinder, the first mounting column and the second mounting column both ends are equipped with the first triangular support frame and the second triangular support frame of same structure respectively, and the support leg on triangular support frame can realize angle adjustment and stable abutting support surface through adjusting groove and fastening block, and the hanger buckle with the hanging hole and the screwing rod convenient for length adjustment are further equipped on the mounting column. The hanger can be flexibly adapted to different height operation scene, and can realize multi -scene reuse without replacing equipment.

Description

Technical Field

[0001] This utility model relates to the field of high-altitude work safety equipment technology, and in particular to a detachable fall-prevention safety belt hanger. Background Technology

[0002] In construction, equipment maintenance, and high-altitude operations, fall arrestor belts are crucial equipment for ensuring the safety of workers. The reliable suspension of these belts relies on appropriate suspension equipment. Currently, most mainstream fall arrestor belt suspension devices on the market adopt an integrated fixed structure design. Their length, installation height, and installation method are all preset and fixed, only suitable for single-height or specific installation scenarios. For example, a suspension bracket designed for a fixed floor height can only be installed on beams or walls on that floor. If the work scenario changes to a higher or lower floor, a maintenance platform at a different height, or the work position needs to be temporarily adjusted, traditional fixed-height suspension equipment often faces the dilemma of being unable to install because it cannot change its length and installation height. Even if it is barely adapted by adding extra shims or welding extensions, the non-standard adaptation will lead to uneven stress on the suspension points, causing problems such as bracket swaying and loose connections, resulting in the risk of the safety belt falling off after suspension, seriously threatening the safety of workers.

[0003] Meanwhile, the limitations of traditional fixed-height suspension equipment lead to a series of derivative problems: On the one hand, to meet the needs of different working scenarios at different heights, construction or maintenance units need to purchase multiple sets of suspension equipment of different specifications, which not only increases equipment procurement costs but also leads to complex equipment inventory management and idle equipment occupying a large amount of storage space. On the other hand, when the working scenario height changes frequently (such as multi-story building construction layer by layer or multi-height equipment maintenance in sequence), operators need to repeatedly disassemble and replace suspension equipment of different specifications, which not only prolongs the work preparation time and reduces the overall work efficiency, but also increases the risk of high-altitude operation for operators during disassembly and installation at heights. In addition, although some traditional suspension equipment attempts to adjust the length with bolts, the adjustment process requires the use of professional tools such as wrenches and screwdrivers, which is cumbersome and has low adjustment accuracy, making it difficult to quickly match the required height. It still cannot fundamentally solve the adaptation problem in fixed-height scenarios and cannot meet the needs of actual operation for the flexibility, stability, and convenience of suspension equipment. Utility Model Content

[0004] In view of this, the present invention provides a detachable fall arrestor safety belt hanger to solve the technical problem that in fixed height scenarios, traditional fall arrestor safety belt suspension devices, due to their fixed length or fixed installation method, can only be adapted to a single height or specific installation scenario. When the height of the work scenario changes, the suspension position cannot be flexibly adjusted or the suspension point is unstable after installation, resulting in poor equipment adaptability.

[0005] This utility model embodiment provides a detachable fall arrestor suspension device, comprising: a support part, including a first mounting post and a second mounting post detachably connected; one end of each of the first and second mounting posts is provided with a first triangular support frame and a second triangular support frame with identical structures; the first connecting post is provided with a threaded cylinder at the end away from the first triangular support frame, and the second connecting post is provided with a screw at the end away from the second triangular support frame, the screw being adapted to the threaded cylinder, and the length of the first and second mounting posts after connection can be adjusted based on the cooperation of the screw and the threaded cylinder, so that the first and second mounting posts abut against the planes at both ends respectively; the first mounting post and the second connecting post are also provided with hooks.

[0006] Preferably, both the ends of the first mounting post and the second mounting post are provided with thickened sections;

[0007] The first and second mounting posts have circular cross-sections, while the thickened section has a polygonal cross-section.

[0008] The diameter of the inscribed circle of the polygonal structure is greater than the cross-sectional diameter of the first mounting post and the second mounting post.

[0009] Preferably, the first mounting post and the second mounting post are further provided with a screwing rod;

[0010] The turning rod includes a connecting part and a turning handle;

[0011] The cross-sectional shape of the joint is adapted to the polygonal structure. When the joint is combined with the thickened part, the first mounting post or the second mounting post can be moved by rotating the screw handle, so that the length of the first mounting post and the second mounting post after connection can be extended or shortened.

[0012] Preferably, the first triangular mounting frame includes a frame body integrally formed with the support portion, and a mounting frame disposed at one end of the frame body;

[0013] The frame body is provided with a first support leg, a second support leg, and a third support leg via the mounting frame. The first support leg, the second support leg, and the third support leg are evenly spaced on the mounting frame.

[0014] Preferably, the mounting frame is provided with a first mounting groove, a second mounting groove, and a third mounting groove at even intervals for mounting the first support leg, the second support leg, and the third support leg, respectively.

[0015] The first mounting slot, the second mounting slot, and the third mounting slot have the same structural configuration.

[0016] Preferably, a first mounting plate and a second mounting plate are respectively provided on both sides of the first mounting groove in a mirror arrangement, and the first mounting plate and the second mounting plate are respectively provided with a first adjustment groove and a second adjustment groove with an arc cross section.

[0017] The first support leg has an adjustment shaft near its end, with its two ends respectively located in the first adjustment groove and the second adjustment groove. The end of the first support leg is hinged to the top of the first mounting groove.

[0018] Preferably, the adjusting shaft is provided with a fastening thread, and the adjusting shaft can be fixed in position on the first support leg by the cooperation of the fastening block and the fastening thread.

[0019] Preferably, the bottom of the first support leg, the second support leg, and the third support leg are each provided with a support foot pad.

[0020] Preferably, the hook is hinged to the first mounting post and the second connecting post, and the hook is provided with a hanging hole.

[0021] The detachable fall-prevention safety belt hanger provided by this utility model has the following beneficial effects:

[0022] In this invention, a detachable fall-prevention safety belt hanger utilizes a threaded engagement structure between a screw and a threaded cylinder between the first and second mounting columns. Combined with a design that allows for quick adjustment via a turning lever, this effectively overcomes the limitations of traditional fixed-height suspension devices. In scenarios such as construction work on different floors or equipment maintenance on platforms at different heights, workers do not need to replace the entire device. They can simply rotate the handle to move the mounting columns relative to each other, flexibly adjusting the overall length of the support unit to ensure the hook remains at a safe suspension height. Simultaneously, the tight engagement between the screw and the threaded cylinder after length adjustment, combined with the stable support of the triangular support frames at both ends of the support unit, ensures the hook maintains a reliable load-bearing state at different heights. This avoids the problems of installation failure or wobbling suspension points caused by height mismatches in traditional equipment. It enhances the device's adaptability to multi-height scenarios and provides stable protection for workers' fall safety, significantly reducing equipment replacement costs and safety risks in different work scenarios. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of this utility model.

[0024] Figure 1 This is a structural diagram of a detachable fall arrestor safety belt suspension device;

[0025] Figure 2 This is a schematic diagram of the unfolded triangular support frame;

[0026] Figure 3 This is a schematic diagram of the triangular support frame when it is folded up;

[0027] Parts and their numbers in the diagram:

[0028] 100-Support part, 110-First mounting post, 111-Threaded cylinder, 120-First triangular support frame, 121-Frame body, 122-Mounting frame, 123-First mounting groove, 124-First mounting plate, 125-First adjustment groove, 126-Second mounting plate, 127-Second adjustment groove, 128-Fastening block, 133-First support leg, 134-Second support leg, 135-Third support leg, 136-Support foot pad, 140-Second mounting post, 141-Second triangular support frame, 145-Screw;

[0029] 210 - Bold section, 220 - Hook, 230 - Tightening rod, 231 - Joint, 232 - Tightening handle. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in this document, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application 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, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Unless otherwise specified, embodiments of the present invention and the various features thereof can be combined with each other, all within the protection scope of the present invention.

[0031] Example 1

[0032] Please see Figure 1 This utility model provides a detachable fall arrestor suspension device. In high-altitude operations such as construction and power maintenance, fall arrestor suspension equipment is crucial for ensuring operational safety. However, traditional equipment generally suffers from fixed height and poor adaptability. Its support structure is mostly an integrated design, with the length and installation height fixed at the factory, which can only match a single preset scenario. When the working height changes, such as construction on different floors or maintenance of equipment at multiple heights, it either cannot be installed due to length incompatibility or requires the addition of accessories to barely fit, resulting in uneven stress on the suspension point and a significant decrease in stability. Moreover, most equipment installations rely on preset holes or welding fixation, making it difficult to reuse after disassembly. This not only increases the cost of equipment procurement and storage but also requires operators to repeatedly replace equipment, extending operation time and increasing the risk of high-altitude accidents. It can never meet the actual operational needs for flexible adaptability, stability, reliability, and convenient reuse of equipment.

[0033] Please see Figure 1 and Figure 2In this embodiment, the detachable fall arrestor includes a support portion 100, which includes a first mounting post 110 and a second mounting post 140 that are detachably connected. One end of each of the first mounting post 110 and the second mounting post 140 is provided with a first triangular support frame 120 and a second triangular support frame 141 having identical structures. The first mounting post 110 has a threaded cylinder 111 at the end away from the first triangular support frame 120, and the second mounting post 140 has a screw 145 at the end away from the second triangular support frame 141. The screw 145 is adapted to the threaded cylinder 111, and the length of the first mounting post 110 and the second mounting post 140 after connection can be adjusted based on the cooperation of the screw 145 and the threaded cylinder 111, so that the first mounting post 110 and the second mounting post 140 respectively abut against the planes at both ends. The first mounting post 110 and the second mounting post 140 are also provided with hooks 220.

[0034] Please see Figure 1 and Figure 2 When using it, first confirm that all core components of the suspension are complete and undamaged, including the first mounting post 110 and the second mounting post 140 of the support part 100, the first triangular support frame 120 and the second triangular support frame 141 at both ends, as well as the matching threaded cylinder 111, screw 145 and hook 220; focus on checking whether the threads of the threaded cylinder 111 and the screw 145 are intact, without deformation or corrosion, whether the support legs of the triangular support frame can be unfolded normally, and whether the hinge of the hook 220 is flexible and without the risk of breakage, so as to avoid affecting the safety of subsequent use due to component damage.

[0035] During installation, first align the threaded cylinder 111 of the first mounting post 110 with the screw 145 of the second mounting post 140, and rotate one of the mounting posts clockwise so that the screw 145 is slowly screwed into the threaded cylinder 111 to complete the initial connection between the two. At this time, it is not necessary to tighten it completely, leaving a certain adjustment margin to facilitate precise matching of the spacing later. Next, lift the initially assembled support 100 so that the first triangular support 120 at one end of the first mounting post 110 is aligned with the support plane at one end, and the second triangular support 141 at one end of the second mounting post 140 is aligned with the support plane at the other end. One person holds the support 100 with both hands to keep it stable, while another person adjusts the overall length by rotating the first mounting post 110 or the second mounting post 140, using the threaded transmission between the screw 145 and the threaded cylinder 111. If the gap is too large, continue to rotate clockwise to make the screw 145 screw further into the threaded cylinder 111, shortening the overall length. If the gap is too small, rotate counterclockwise to make the screw 145 partially screw out of the threaded cylinder 111, extending the overall length, until the triangular support frames at both ends are initially in contact with the corresponding support planes.

[0036] Furthermore, after the triangular support frame has initially made contact with the support plane, continue to slowly rotate the mounting column and apply appropriate force to make the threaded cylinder 111 and the screw 145 tightly engage, driving the triangular support frames at both ends to apply pressure to the support plane until the bottom of the support legs of the triangular support frame is completely in contact with the plane and the support part 100 shows no signs of shaking. At this time, it is necessary to observe whether the triangular support frame remains horizontal to avoid tilting on one side due to uneven force.

[0037] After securing the support, the operator must manually push the middle and both ends of the support 100 to check for any displacement or loosening; at the same time, step on the support legs of the first triangular support frame 120 and the second triangular support frame 141 to confirm that the support legs do not sink or slip, and that the threaded cylinder 111 and the screw 145 do not rotate relative to each other, ensuring that the support 100 can stably bear the weight of the safety belt transmitted by the subsequent hook 220.

[0038] After confirming that the support 100 is fixed and secure, align the main hook of the fall arrest safety belt with the hook 220 on the first mounting post 110 or the second mounting post 140, insert the hook 220, and then gently pull the safety belt to check whether the hook is fully locked to avoid the hook not being locked and causing it to fall off. If the working area is large, the hooks 220 on two mounting posts can be connected at the same time to form a double safety guarantee.

[0039] During high-altitude operations, workers must regularly observe the condition of the suspension system, including whether the triangular support frame is still in close contact with the support plane, whether the threaded cylinder 111 and screw 145 are loose, and whether the hook 220 shows signs of deformation. If any abnormality is found, work must be stopped immediately, the suspension system must be re-inspected and reinforced, and operations can only continue after it is confirmed to be safe.

[0040] After the work is completed, first unhook the hook on the safety belt, then two people work together to rotate the first mounting post 110 or the second mounting post 140 in the opposite direction so that the screw 145 is screwed out from the threaded cylinder 111, separating the first mounting post 110 and the second mounting post 140. Finally, remove the triangular support frame at both ends, clean each part and store it for future reuse.

[0041] Please see Figure 1 , Figure 2 and Figure 3 Furthermore, both the first mounting post 110 and the second mounting post 140 have thickened sections 210 at their ends; the cross-sections of the first mounting post 110 and the second mounting post 140 are circular, and the cross-section of the thickened section 210 is polygonal; the diameter of the inscribed circle of the polygonal structure is larger than the cross-sectional diameter of the first mounting post 110 and the second mounting post 140.

[0042] Furthermore, the first mounting post 110 and the second mounting post 140 are also provided with a screwing rod 230; the screwing rod 230 includes a connecting part 231 and a screwing handle 232; the cross-sectional shape of the connecting part 231 is adapted to the polygonal structure, and when the connecting part 231 is connected to the thickened section 210, the screwing handle 232 can be rotated to drive the first mounting post 110 or the second mounting post 140 to move, so that the length of the first mounting post 110 and the second mounting post 140 after connection can be extended or shortened.

[0043] When adjusting the length of the first mounting post 110 and the second mounting post 140, first align the joint 231 of the turning rod 230 with the polygonal thickened section 210 at the end of the first mounting post 110 or the second mounting post 140. Since the cross-sectional shape of the joint 231 is perfectly matched with the polygonal structure of the thickened section 210, the joint 231 can be easily fitted onto the thickened section 210 to achieve a tight engagement. At this time, the operator holds the support 100 with one hand for stability and holds the turning rod 230 with the other hand. When the handle 232 is turned clockwise, the joint 231 will drive the mounting post to rotate synchronously, causing the screw 145 to screw into the threaded cylinder 111 to shorten the overall length. When turned counterclockwise, the mounting post will rotate in the opposite direction, causing the screw 145 to screw out of the threaded cylinder 111 to extend the overall length. The whole process is more labor-saving with the help of the lever arm of the turning rod 230, and the polygonal structure avoids slippage during rotation, which can precisely control the length adjustment range until the triangular support brackets at both ends are initially in contact with the support plane.

[0044] After the length of the support 100 is adjusted and secured, the turning rod 230 needs to be removed: Hold the turning handle 232 and gently apply upward or outward force to separate the joint 231 from the thickened section 210. Then place the turning rod 230 in a safe position that does not affect the operation. If the length needs to be finely adjusted again in subsequent operations, the above operation can be repeated to reconnect the turning rod 230 with the thickened section 210 for adjustment. No additional tools are needed, which ensures the convenience and stability of adjustment and avoids the possible impact damage or obstruction of the safety belt suspension operation caused by the turning rod 230 being worn on the mounting column for a long time.

[0045] Furthermore, the first triangular support frame 120 includes a frame body 121 integrally formed with the support part 100, and a mounting frame 122 disposed at one end of the frame body 121; the frame body 121 is provided with a first support leg 133, a second support leg 134 and a third support leg 135 through the mounting frame 122, and the first support leg 133, the second support leg 134 and the third support leg 135 are evenly spaced on the mounting frame 122.

[0046] Furthermore, the mounting bracket 122 is provided with a first mounting groove 123, a second mounting groove, and a third mounting groove at uniform intervals for mounting the first support leg 133, the second support leg 134, and the third support leg 135, respectively; the first mounting groove 123, the second mounting groove, and the third mounting groove have the same structural configuration.

[0047] Furthermore, the first mounting groove 123 has a first mounting plate 124 and a second mounting plate 126 arranged in a mirror image on both sides. The first mounting plate 124 and the second mounting plate 126 are respectively provided with a first adjustment groove 125 and a second adjustment groove 127 with an arc-shaped cross section. The first support leg 133 is provided with an adjustment shaft near its end. The two ends of the adjustment shaft are respectively located in the first adjustment groove 125 and the second adjustment groove 127. The end of the first support leg 133 is hinged to the top of the first mounting groove 123.

[0048] Furthermore, the adjusting shaft is provided with a fastening thread, and the adjusting shaft can be fixed in position on the first support leg 133 by the cooperation of the fastening block 128 with the fastening thread.

[0049] When using a detachable fall arrestor suspension device, after the first mounting post 110 and the second mounting post 140 are initially assembled, the support legs of the first triangular support frame 120 and the second triangular support frame 141 at both ends of the support part 100 are adjusted: taking the first triangular support frame 120 as an example, first locate the evenly spaced first mounting slot 123, second mounting slot, and third mounting slot on the mounting frame 122, and for the support legs 133, 134, and 135 in each mounting slot, loosen the fastening block 128 on the adjusting shaft with a tool to release the fastening block 128 from locking the adjusting shaft; since the ends of the support legs are connected to the safety belt suspension device, the first triangular support frame 120 and the second triangular support frame 141 at both ends of the support part 100 are adjusted. The top of the mounting slot is hinged, and both ends of the adjusting shaft are embedded in the arc-shaped adjusting slot of the mounting plate. At this time, the support leg can be manually pushed to rotate around the hinge point, while observing the sliding trajectory of the adjusting shaft in the arc-shaped adjusting slot, until the support leg is rotated to the maximum opening angle. At this angle, the adjusting shaft slides to the limit position of the adjusting slot, and the support leg and the frame body 121 form the maximum support span, which can exert the optimal support force. After all three support legs are adjusted to the maximum opening angle, tighten the fastening block 128 on each adjusting shaft in the opposite direction. Through the tight engagement between the fastening block 128 and the fastening thread of the adjusting shaft, the adjusting shaft is fixed in the adjusting slot, thereby locking the angle of the support leg and preventing the support leg from shifting during subsequent use. After the second triangular support frame 141 completes the adjustment and locking of the support legs in the same steps, the overall length of the support part 100 is adjusted by turning the rod 230 so that the bottom of the support legs of the two triangular support frames at both ends are tightly pressed against the corresponding plane. At this time, the triangular support frame provides reliable support for the support part 100 with its stable structure at the maximum opening angle, ensuring that the safety belt can be stably supported after the hook 220 is suspended, thus ensuring work safety.

[0050] In this embodiment, the combined design of the arc-shaped adjustment groove, hinge structure, and locking fastener 128 allows for quick adjustment of the three support legs to their maximum opening angle before use. The evenly spaced layout and maximum support span create a stable triangular support structure, significantly enhancing support strength and anti-tipping ability, ensuring the support part 100 can reliably bear the weight of the seatbelt after being pressed against the plane. Furthermore, the angle of the support legs can be flexibly adjusted according to the actual conditions of different support planes, such as inclined or concave surfaces. All mounting grooves have the same structure and a unified operation process, allowing adjustment to be completed without complex adaptations. Simultaneously, the threaded engagement between the fastener 128 and the adjustment shaft firmly locks the adjusted angle, preventing loosening or displacement during use. This design balances adaptability to complex scenarios, support stability, and ease of operation, effectively solving the problems of fixed angles, poor adaptability, or easy loosening after adjustment inherent in traditional triangular supports.

[0051] Furthermore, the bottom of the first support leg 133, the second support leg 134 and the third support leg 135 are each provided with a support foot pad 136.

[0052] The support pads 136 increase the friction between the support legs and the contact surface, preventing the triangular support frame from sliding or shifting when bearing weight or subjected to external forces. This significantly improves overall stability, especially on smooth or slightly inclined surfaces. Simultaneously, the support pads 136 are made of a material with a certain degree of elasticity, allowing them to adapt to the slight unevenness of the contact surface through deformation. This ensures a tighter fit between the bottom of the support legs and the surface, preventing support wobbling caused by unevenness. Furthermore, they provide cushioning protection for the bottom of the support legs, reducing wear from prolonged contact with hard surfaces and extending the lifespan of the support legs.

[0053] Furthermore, the hook 220 is hinged to the first mounting post 110 and the second mounting post 140, and the hook 220 is provided with a hanging hole. The hanging hole is used to suspend the safety rope and safety belt. The diameter of the hanging hole is optimized to fit common safety rope buckles on the market, ensuring a stable connection and preventing it from falling off during suspension. The hook 220 is integrally formed from high-strength alloy material, and its hinge can rotate freely within a preset range. During use, it can flexibly adjust its angle according to the direction of force on the safety rope, avoiding stress concentration and damage to the hook 220 or the mounting post due to rope tension.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A detachable fall arrestor safety belt hanger, characterized in that, include: The support (100) includes a first mounting post (110) and a second mounting post (140) that are detachably connected; One end of the first mounting post (110) and the second mounting post (140) is provided with a first triangular support frame (120) and a second triangular support frame (141) with the same structure; The first mounting post (110) has a threaded cylinder (111) at the end away from the mounting of the first triangular support frame (120), and the second mounting post (140) has a screw (145) at the end away from the mounting of the second triangular support frame (141). The screw (145) is adapted to the threaded cylinder (111), and the length of the first mounting post (110) and the second mounting post (140) after connection can be adjusted based on the cooperation of the screw (145) and the threaded cylinder (111), so that the first mounting post (110) and the second mounting post (140) abut against the planes at both ends respectively. The first mounting post (110) and the second mounting post (140) are also provided with hooks (220).

2. A detachable fall arrestor suspension device according to claim 1, characterized in that, Both the first mounting post (110) and the second mounting post (140) are provided with thickened sections (210) at their ends; The first mounting post (110) and the second mounting post (140) have circular cross-sections, and the thickened section (210) has a polygonal cross-section. The diameter of the inscribed circle of the polygonal structure is greater than the cross-sectional diameter of the first mounting post (110) and the second mounting post (140).

3. A detachable fall arrestor suspension device according to claim 2, characterized in that, The first mounting post (110) and the second mounting post (140) are also provided with a screwing rod (230); The cranking rod (230) includes a connecting part (231) and a cranking handle (232); The cross-sectional shape of the connecting part (231) is adapted to the polygonal structure. When the connecting part (231) is connected to the thickened section (210), the first mounting post (110) or the second mounting post (140) can be moved by rotating the screw handle (232) so that the length of the first mounting post (110) and the second mounting post (140) after connection can be extended or shortened.

4. A detachable fall arrestor suspension device according to claim 1, characterized in that, The first triangular support frame (120) includes a frame body (121) integrally formed with the support part (100), and a mounting frame (122) disposed at one end of the frame body (121); The frame body (121) is provided with a first support leg (133), a second support leg (134) and a third support leg (135) via the mounting frame (122). The first support leg (133), the second support leg (134) and the third support leg (135) are evenly spaced on the mounting frame (122).

5. A detachable fall arrestor suspension device according to claim 4, characterized in that, The mounting bracket (122) is provided with a first mounting groove (123), a second mounting groove and a third mounting groove at even intervals for mounting the first support leg (133), the second support leg (134) and the third support leg (135) respectively; The first mounting slot (123), the second mounting slot, and the third mounting slot have the same structural configuration.

6. A detachable fall arrestor suspension device according to claim 5, characterized in that, The first mounting groove (123) has a first mounting plate (124) and a second mounting plate (126) arranged in a mirror image on both sides. The first mounting plate (124) and the second mounting plate (126) are respectively provided with a first adjustment groove (125) and a second adjustment groove (127) with an arc cross section. The first support leg (133) is provided with an adjustment shaft near its end. The two ends of the adjustment shaft are respectively located in the first adjustment groove (125) and the second adjustment groove (127). The end of the first support leg (133) is hinged to the top of the first mounting groove (123).

7. A detachable fall arrestor suspension device according to claim 6, characterized in that, The adjusting shaft is provided with a fastening thread, and the adjusting shaft can fix the position of the first support leg (133) on the adjusting shaft by the cooperation of the fastening block (128) and the fastening thread.

8. A detachable fall arrestor suspension device according to claim 4, characterized in that, The bottom of the first support leg (133), the second support leg (134) and the third support leg (135) are each provided with a support foot pad (136).

9. A detachable fall arrestor suspension device according to claim 6, characterized in that, The hook (220) is hinged to the first mounting post (110) and the second mounting post (140), and the hook (220) is provided with a hanging hole.

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