Steel construction seat belt fixing slide rail for connecting seat belt buckle and method of using the same

Abstract

The application relates to the technical field of building construction, and discloses a steel structure safety belt fixing slide rail for connecting a safety belt buckle and a use method thereof. The steel structure safety belt fixing slide rail comprises a slide rail installed on the lower flange of an H-shaped steel beam, a sliding groove is formed in the slide rail, a shell is slidably arranged in the sliding groove, and a safety belt buckle for connecting a safety belt is arranged on the shell. A speed limiting mechanism is arranged in the shell, the speed limiting mechanism comprises a rotating shaft and a gear, the rotating shaft is rotatably arranged on the shell, the gear is connected with the rotating shaft, a rack is arranged on the slide rail, and the rack is engaged with the gear. The speed limiting mechanism further comprises a brake assembly, the brake assembly comprises an internal ratchet wheel and a pawl. The steel structure safety belt fixing slide rail and the use method thereof have the advantages that the safety belt slide rail is installed on the lower flange of the H-shaped steel beam, construction personnel can conveniently move and improve construction efficiency, a stable connecting point is provided to improve safety, and speed limiting safety protection is provided for the horizontal movement of the construction personnel.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a steel structure safety belt fixing slide rail for connecting a safety belt buckle and a use method thereof. BACKGROUND

[0002] At present, after the truss floor slab construction is completed in a steel structure project, the floor where the lower structure construction is completed needs to be subjected to various process interleaving construction operations. Since the beams used on site are all H-shaped steel beams, if the traditional safety belt is used, there is no safety belt fixing point for the safety belt on site, and the safety belt on site can only be tied to an operating frame. Once the operating frame is unstable, a high-falling accident will occur, which will have a great safety hazard. Moreover, the safety belt buckle cannot be effectively connected to a reliable point, which leads to great inconvenience during construction operations and affects the quality and progress of on-site construction.

[0003] On the other hand, considering that the construction personnel need to move at multiple construction points during suspension operations, the traditional safety belt buckle with a fixed point cannot provide the function of convenient movement for the construction personnel. SUMMARY

[0004] The present application provides a steel structure safety belt fixing slide rail for connecting a safety belt buckle and a use method thereof, which has the beneficial effects of allowing the construction personnel to conveniently move and improve construction efficiency by installing the safety belt slide rail on the lower flange of the H-shaped steel beam, providing a stable connection point to improve safety, and providing horizontal movement speed limit safety protection for the construction personnel, thereby solving the problems that the traditional safety belt can only be tied to an operating frame during on-site construction, that once the operating frame is unstable, a high-falling accident will occur, that there is a great safety hazard, and that the safety belt buckle cannot be effectively connected to a reliable point, which leads to great inconvenience during construction operations and affects the quality and progress of on-site construction.

[0005] The present application provides the following technical solution: a steel structure safety belt fixing slide rail for connecting a safety belt buckle, comprising a slide rail installed on the lower flange of an H-shaped steel beam, a sliding groove is formed in the slide rail, a shell is slidably arranged in the sliding groove, and a safety belt buckle for connecting a safety belt is arranged on the shell.

[0006] A speed limiting mechanism is arranged in the shell, the speed limiting mechanism comprises a rotating shaft and a gear, the rotating shaft is rotatably arranged on the shell, the gear is connected with the rotating shaft, a rack is arranged on the slide rail, and the rack is engaged with the gear.

[0007] The speed limiting mechanism further comprises a brake assembly, the brake assembly comprises an inner ratchet wheel and a pawl, the inner ratchet wheel is arranged in the shell, the pawl is connected with the rotating shaft, and the speed of the shell is limited by the pawl being locked with the inner ratchet wheel when the speed of the shell exceeds the threshold value set by the speed limiting mechanism.

[0008] As an optional solution of the steel structure safety belt fixing slide rail, the brake assembly further comprises a first rotating disc rotatably arranged on the shell, the first rotating disc is connected with the rotating shaft, and a second rotating disc is arranged on the first rotating disc, the second rotating disc is connected with the rotating shaft.

[0009] A rotating rod is rotatably arranged on the first rotating disc, the pawl is arranged on the rotating rod, and an embedding groove is formed in the second rotating disc.

[0010] The speed limiting mechanism further comprises an elastic assembly for providing a supporting force to the pawl.

[0011] As an optional solution of the steel structure safety belt fixing slide rail, the elastic assembly comprises a third rotating disc rotatably arranged in the shell, the third rotating disc is connected with the rotating shaft, a connecting rod is arranged on the pawl, an arc-shaped groove is formed in the third rotating disc, a sleeve is slidably arranged in the arc-shaped groove, and the connecting rod is movably inserted into the sleeve.

[0012] The elastic assembly further comprises a spring, and two ends of the spring are connected to the third rotating disc and the sleeve, respectively.

[0013] As an optional solution of the steel structure safety belt fixing slide rail, the speed limiting mechanism further comprises an adjusting assembly, the adjusting assembly comprises an adjusting screw, a fixing seat is arranged on the third rotating disc, the spring is connected to the fixing seat, an adjusting rod is arranged on the adjusting screw, and the adjusting rod is slidably connected to the fixing seat.

[0014] As an optional solution of the steel structure safety belt fixing slide rail, the speed limiting mechanism further comprises a buffer assembly, the buffer assembly comprises a torsion rod, the gear is arranged on the torsion rod, a connecting cylinder is arranged on the rotating shaft, the torsion rod is rotatably connected to the connecting cylinder, a clamping tooth is arranged on the torsion rod, and an inner clamping tooth that is adapted to the clamping tooth is formed in the connecting cylinder.

[0015] When the inner ratchet wheel is locked with the pawl, the torsion rod is twisted to provide a buffer distance for the shell.

[0016] As an optional scheme of the steel structure safety belt fixing slide rail, the buffer assembly further comprises a polygonal slot formed on the connecting cylinder, a clamping block is slidably arranged in the polygonal slot, and a clamping groove matched with the clamping block is formed on the gear.

[0017] As an optional scheme of the steel structure safety belt fixing slide rail, the buffer assembly further comprises a connecting seat, the clamping block is rotatably connected to the connecting seat, a guide rod is arranged on the connecting seat, and a guide slot is formed on the slide rail, and the guide rod is slidably connected to the guide slot.

[0018] The guide slot comprises a buffer section and two non-buffer sections, wherein the buffer section is located at the middle of the H-shaped steel beam, and the two non-buffer sections are respectively located at the two ends of the H-shaped steel beam.

[0019] As an optional scheme of the steel structure safety belt fixing slide rail, the speed limiting mechanism is symmetrically arranged on the shell, and the directions of the teeth of the two inner ratchets in the two speed limiting mechanisms are opposite.

[0020] As an optional scheme of the steel structure safety belt fixing slide rail, the slide rail is provided with a movable plate, and the movable plate is connected to the H-shaped steel beam through bolts.

[0021] The application further provides a use method of the steel structure safety belt fixing slide rail, comprising the following steps:

[0022] S1, first, the construction personnel install the slide rail on the H-shaped steel beam, then install the safety belt on the safety belt buckle, and then the construction personnel can start the suspension operation and move along the lower flange of the H-shaped steel beam through the traction of the shell;

[0023] S2, when the construction personnel moves along the middle section of the H-shaped steel beam, one of the speed limiting mechanisms is triggered to operate according to the moving direction, at this time, the guide rod slides in the buffer section, if the moving speed of the construction personnel is less than the threshold value set by the speed limiting mechanism, the gear is driven to rotate by the rack along with the movement of the shell, if the moving speed is greater than the threshold value set by the speed limiting mechanism, the centrifugal force acting on the pawl is greater than the supporting force provided by the spring, so that the pawl is deflected inward to the inner ratchet, and the inner ratchet is locked, so that the rotating shaft stops rotating;

[0024] S3, when the rotating shaft stops rotating, the torsion rod is twisted under the action of the inertial force, so that the gear moves a certain distance and then stops rotating and is locked with the rack, thereby providing a certain buffer distance for the construction personnel and then braking;

[0025] S4, when the construction personnel moves along the two ends of the H-shaped steel beam, the guide rod slides along one of the non-buffer sections, the clamping block is inserted into the clamping groove under the driving of the connecting seat, so that the rotating shaft is directly connected with the gear, and at this time, if the moving speed of the construction personnel is greater than the threshold value set by the speed limiting mechanism, the shell immediately stops moving.

[0026] The present application has the following advantages:

[0027] 1. The steel structure safety belt fixing slide rail and its use method, the safety belt buckle is installed on the shell, the shell slides along the slide rail, and the slide rail is fixed at the lower flange of the H-shaped steel beam. Compared with the traditional safety belt fixed on the operating frame when the construction personnel hangs, it is more secure and safe, and the safety risk is reduced. Considering that the construction personnel need to move at multiple construction points, it is not convenient to rely on the safety belt to rely on the fixed support point to swing, and the safety belt buckle can also move with the shell on the slide rail, thereby improving the quality and progress of the site construction.

[0028] 2. The steel structure safety belt fixing slide rail and its use method, two groups of speed limiting mechanisms are installed in the shell, which are used to lock the shell when the moving speed exceeds the set threshold value. Specifically, when the shell moves too fast in one direction, one of the speed limiting mechanisms will be triggered, causing the pawl in the shell to be deflected by the centrifugal force exceeding the elastic support force provided by the elastic component, and being locked with the internal ratchet, thereby stopping the rotation of the rotating shaft, so that the gear connected with the rotating shaft cannot continue to roll along the rack installed on the slide rail, and the shell is locked, which can avoid risks when the construction personnel moves rapidly in the horizontal direction due to stumbling or other reasons, and can further improve the safety by cooperating with the fall protector in the vertical direction.

[0029] 3. The steel structure safety belt fixing slide rail and its use method, the specific speed limiting threshold of the shell can be adjusted by adjusting the elastic force of the elastic component, and can be adjusted in two directions respectively. In addition, the brake of the shell when overspeed is buffered by the buffer component, so as to avoid injury to the construction personnel due to the inertia of sudden braking.

[0030] 4. The steel structure safety belt fixing slide rail and its use method, the buffering effect of the buffer component will change adaptively according to the specific position of the shell relative to the H-shaped steel beam. When the construction personnel moves in the middle part of the H-shaped steel beam, the buffer component plays a buffering role, and when the construction personnel moves in the part close to the wall and other building structures at both ends of the H-shaped steel beam, the buffer component loses the buffering effect. At this time, considering the risk of collision, the shell is immediately braked when overspeed. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a whole structure schematic diagram of the steel structure safety belt fixing slide rail for connecting the safety belt buckle.

[0032] Figure 2 The overall schematic view of the sectional structure of the present application.

[0033] Figure 3 The first schematic view of the sectional structure of the shell of the present application.

[0034] Figure 4 The second schematic view of the sectional structure of the shell of the present application. Figure 3 The partial enlarged schematic view of A in the present application.

[0035] Figure 5 The third schematic view of the sectional structure of the shell of the present application.

[0036] Figure 6 The fourth schematic view of the sectional structure of the shell of the present application. Figure 5 The partial enlarged schematic view of B in the present application.

[0037] Figure 7 The fifth schematic view of the sectional structure of the shell of the present application.

[0038] Figure 8 The sixth schematic view of the sectional structure of the shell of the present application.

[0039] Figure 9 The seventh schematic view of the sectional structure of the two groups of speed limiting mechanisms of the present application.

[0040] Figure 10 The eighth schematic view of the sectional structure of the single group of speed limiting mechanisms of the present application.

[0041] In the figure: 100, H-shaped steel beam; 200, slide rail; 210, slide groove; 220, shell; 230, safety belt buckle; 240, movable plate; 250, bolt; 300, speed limiting mechanism; 310, rotating shaft; 320, gear; 330, rack; 340, braking assembly; 341, inner ratchet; 342, first rotating disc; 343, second rotating disc; 344, rotating rod; 345, pawl; 346, embedding groove; 350, elastic assembly; 351, third rotating disc; 352, connecting rod; 353, arc-shaped groove; 354, sleeve; 355, spring; 360, adjusting assembly; 361, adjusting screw; 362, adjusting rod; 363, fixed seat; 370, buffering assembly; 371, torsion rod; 372, connecting cylinder; 373, clamping tooth; 374, polygonal groove; 375, clamping block; 376, clamping groove; 377, connecting seat; 378, guide rod; 379, guide groove; 3791, buffering section; 3792, non-buffering section. DETAILED DESCRIPTION

[0042] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0043] Embodiment 1

[0044] The safety belt buckle is fixed on the operating frame by the construction personnel during the suspension operation, which is not stable enough and has safety hazards, and cannot provide the construction personnel with the function of convenient horizontal movement, and there may be a problem of insufficient safety belt length. Therefore, in order to solve the above problems, embodiment 1 is proposed;

[0045] Please refer to Figures 1-10 , a steel structure safety belt fixing slide rail for connecting a safety belt buckle, comprising a slide rail 200 mounted on the lower flange of the H-shaped steel beam 100, a sliding groove 210 is formed on the slide rail 200, a shell 220 is slidably arranged in the sliding groove 210, and a safety belt buckle 230 for connecting a safety belt is arranged on the shell 220;

[0046] A speed limiting mechanism 300 is arranged in the shell 220, the speed limiting mechanism 300 comprises a rotating shaft 310 and a gear 320, the rotating shaft 310 is rotatably arranged on the shell 220, the gear 320 is connected with the rotating shaft 310, and a rack 330 is arranged on the slide rail 200, and the rack 330 is engaged with the gear 320;

[0047] The speed limiting mechanism 300 further comprises a brake assembly 340, the brake assembly 340 comprises an internal ratchet wheel 341 and a pawl 345, the internal ratchet wheel 341 is arranged in the shell 220, the pawl 345 is connected with the rotating shaft 310, and the speed limiting of the shell 220 is realized by the pawl 345 being locked with the internal ratchet wheel 341 when the moving speed of the shell 220 exceeds the threshold value set by the speed limiting mechanism 300;

[0048] The brake assembly 340 further comprises a first rotating disc 342 rotatably arranged on the shell 220, the first rotating disc 342 is connected with the rotating shaft 310, a second rotating disc 343 is arranged on the first rotating disc 342, and the second rotating disc 343 is connected with the rotating shaft 310;

[0049] A rotating rod 344 is rotatably arranged on the first rotating disc 342, the pawl 345 is arranged on the rotating rod 344, and an embedding groove 346 is formed on the second rotating disc 343;

[0050] The speed limiting mechanism 300 further comprises an elastic assembly 350 for providing a supporting force to the pawl 345;

[0051] The two speed limiting mechanisms 300 are symmetrically arranged based on the shell 220, and the directions of the teeth of the two inner ratchets 341 in the two speed limiting mechanisms 300 are opposite.

[0052] The sliding rail 200 is provided with a movable plate 240, and the movable plate 240 is connected to the H-shaped steel beam 100 through a bolt 250.

[0053] In the embodiment, first, the shape of the sliding rail 200 is matched with the lower flange part of the H-shaped steel beam 100, and the movable plate 240 movably arranged on the sliding rail 200 can be adjusted by the bolt 250 to adapt to various models of the H-shaped steel beam 100.

[0054] After the sliding rail 200 is fixed, the safety belt only needs to be connected to the safety belt buckle 230, so as to provide a stable support point for the construction personnel, and the shell 220 can slide in the sliding groove 210 along the direction of the H-shaped steel beam 100, thereby providing a support point for the horizontal movement of the construction personnel.

[0055] Further, considering that the construction personnel usually wear a safety belt and install a safety device such as a fall arrester when wearing the safety belt, the purpose is to lock the safety belt when the construction personnel falls to provide protection for the construction personnel. However, in addition to the sudden acceleration falling safety hazard in the vertical direction, the construction personnel may also collide due to the swing of the safety belt in the horizontal direction caused by the construction personnel losing balance and other reasons when the construction personnel is suspended for operation.

[0056] Therefore, a speed limiting mechanism 300 is further arranged, and the speed limiting mechanism 300 has two groups, and the two groups of speed limiting mechanisms 300 are rotationally symmetric based on the central axis of the shell 220, and correspond to Figure 1 the speed limiting of the shell 220 moving to the right and moving to the left as shown in the middle.

[0057] Taking the speed limiting mechanism 300 for limiting the speed of the shell 220 moving to the right as an example, the part of the rotating shaft 310 inside the shell 220 is a cross shaft, which is embedded in the cross groove on the first rotating disc 342 and the second rotating disc 343. When the shell 220 moves, the rack 330 drives the gear 320 and the rotating shaft 310 to rotate, and at this time, the first rotating disc 342 and the second rotating disc 343 rotate with the rotating shaft 310.

[0058] The rotating rod 344 drives the pawl 345 to make a circular motion based on the first rotating disc 342, and when the shell 220 moves slowly, the elastic component 350 provides an elastic force to the pawl 345 to support the pawl 345 in the embedded groove 346, at this time, the pawl 345 does not contact the inner ratchet 341, and the shell 220 can be freely moved.

[0059] When the shell 220 moves too fast to cause the rotating shaft 310 to rotate too fast, the centrifugal force on the pawl 345 is larger, which causes the rotating rod 344 to drive the pawl 345 to deflect outwardly, so that the pawl 345 is locked with the internal ratchet wheel 341. When the rotating shaft 310 has a tendency to continue to rotate, the second rotating disc 343 rotates counterclockwise, and the lower edge of the embedded groove 346 abuts against the pawl 345, so that the internal ratchet wheel 341 cannot continue to rotate in this direction, and thus the shell 220 is stopped from moving. Figure 8 When the shell 220 moves too fast to cause the rotating shaft 310 to rotate too fast, the centrifugal force on the pawl 345 is larger, which causes the rotating rod 344 to drive the pawl 345 to deflect outwardly, so that the pawl 345 is locked with the internal ratchet wheel 341. When the rotating shaft 310 has a tendency to continue to rotate, the second rotating disc 343 rotates counterclockwise, and the lower edge of the embedded groove 346 abuts against the pawl 345, so that the internal ratchet wheel 341 cannot continue to rotate in this direction, and thus the shell 220 is stopped from moving.

[0060] At this time, in the other set of speed limiting mechanism 300, because the direction of the teeth is opposite to that in Figure 8 , the second rotating disc 343 is equivalent to clockwise rotation, and is not affected.

[0061] It should be noted that the length of the H-shaped steel beam 100 and the slide rail 200 shown in the figure does not represent the actual length, and the actual H-shaped steel beam 100 should be longer.

[0062] Embodiment 2

[0063] To provide a supporting force for the pawl 345 to keep it from being locked with the internal ratchet wheel 341 when the shell 220 does not exceed the speed, and to adjust the specific speed threshold of the speed limiting mechanism 300, embodiment 2 is proposed.

[0064] This embodiment is an improvement on the basis of embodiment 1. Specifically, please refer to Figure 1 - Figure 10 The elastic assembly 350 includes a third rotating disc 351 rotatably arranged in the shell 220, the third rotating disc 351 is connected with the rotating shaft 310, a connecting rod 352 is arranged on the pawl 345, an arc-shaped groove 353 is formed on the third rotating disc 351, a sleeve 354 is slidably arranged in the arc-shaped groove 353, and the connecting rod 352 is movably inserted into the sleeve 354.

[0065] The elastic assembly 350 further includes a spring 355, and the two ends of the spring 355 are respectively connected to the third rotating disc 351 and the sleeve 354.

[0066] The speed limiting mechanism 300 further includes an adjusting assembly 360, and the adjusting assembly 360 includes an adjusting screw 361 and a fixed seat 363, the spring 355 is connected to the fixed seat 363, and an adjusting rod 362 is arranged on the adjusting screw 361 and slidably connected to the fixed seat 363.

[0067] In this embodiment: the third turntable 351 also has a corresponding cross slot, with the rotation of the shaft 310. Connecting rod 352 inserted in the sleeve 354, the spring 355 ends are connected to the fixed seat 363 and the sleeve 354, the spring 355 of the elastic force so that the pawl 345 has a tendency to keep in the slot 346.

[0068] The adjustable screw 361 can be screwed on the shell 220, at this time by turning the adjustable screw 361 can make the adjusting rod 362 along the spring 355 inserted in the part of the spring 355 will make the spring 355 can not be bent, the remaining part of the spring 355 to bend with the pawl 345 and the inner ratchet 341 need to reduce the centrifugal force to be locked.

[0069] Embodiment 3

[0070] If the shell 220 is locked immediately when it is overspeed, it will have a greater impact on the construction personnel, causing safety hazards, so it is necessary to provide a certain buffer distance, therefore, the embodiment 3 is proposed;

[0071] This embodiment is an improvement on the basis of embodiment 1, for details, please refer to Figure 1 - Figure 10 The speed limiting mechanism 300 further comprises a buffer assembly 370, the buffer assembly 370 comprises a torsion rod 371, the gear 320 is arranged on the torsion rod 371, the connecting barrel 372 is arranged on the shaft 310, the torsion rod 371 is rotatably connected to the connecting barrel 372, the clamping tooth 373 is arranged on the torsion rod 371, and the inner clamping tooth corresponding to the clamping tooth 373 is arranged in the connecting barrel 372.

[0072] When the inner ratchet 341 and the pawl 345 are locked, the torsion rod 371 is twisted to provide a buffer distance for the shell 220.

[0073] In this embodiment: the shaft 310 is not directly connected with the gear 320, the connecting barrel 372 is coaxially installed on the shaft 310 first, the torsion rod 371 rotates on the connecting barrel 372, and the connecting barrel 372 also has a groove corresponding to the clamping tooth 373 inside, when the shaft 310 stops rotating, because of the inertia of the shell 220, the left end of the torsion rod 371 will be fixed and cannot rotate, and the other end will be twisted under the inertia to drive the gear 320 to rotate a certain amplitude, so that the shell 220 can be buffered to move a certain distance. Figure 10

[0074] The torsion rod 371 is a conventional prior art and will not be described in detail.

[0075] Embodiment 4

[0076] ​Considering that the H-shaped steel beam 100 is usually connected with various walls and other building structures, when the part is moving, immediate braking is preferred to avoid the collision between the construction personnel and the wall, and thus the embodiment 4 is provided;

[0077] This embodiment is an improved description based on the embodiment 3, and specifically, please refer to Figure 1 - Figure 10 The buffer assembly 370 further comprises a polygonal slot 374 formed on the connecting cylinder 372, and a clamping block 375 is slidingly arranged in the polygonal slot 374. A clamping groove 376 is formed on the gear 320 and is adapted to the clamping block 375.

[0078] The buffer assembly 370 further comprises a connecting seat 377, and the clamping block 375 is rotationally connected to the connecting seat 377. A guide rod 378 is arranged on the connecting seat 377, and a guide slot 379 is formed on the sliding rail 200 and is slidingly connected to the guide rod 378.

[0079] The guide slot 379 comprises a buffer section 3791 and two non-buffer sections 3792. The buffer section 3791 is located at the middle of the H-shaped steel beam 100, and the two non-buffer sections 3792 are respectively located at the two ends of the H-shaped steel beam 100.

[0080] In this embodiment, the distance of the buffer section 3791 relative to the shell 220 is short, the distance of the non-buffer section 3792 relative to the shell 220 is large, and the buffer section 3791 and the two non-buffer sections 3792 are smoothly connected.

[0081] When the shell 220 moves in the middle of the H-shaped steel beam 100, the guide rod 378 slides in the buffer section 3791, and at this time, the torsion rod 371 can play a buffering role.

[0082] When the shell 220 moves near the two ends of the H-shaped steel beam 100, the guide rod 378 slides into the non-buffer section 3792, and at this time, the guide rod 378 drives the connecting seat 377 to move to the right as Figure 10 The connecting seat 377 drives the clamping block 375 to move to the right, and at this time, the clamping block 375 is inserted into the clamping groove 376, so that the rotating shaft 310 and the gear 320 are directly connected, and the torsion rod 371 will not be twisted when braking. At this time, the shell 220 will be immediately braked when it is overspeed.

[0083] The connecting cylinder 372, the polygonal slot 374, the clamping block 375 and the clamping groove 376 are polygonal and play a transmission role. The part of the clamping block 375 connected to the connecting seat 377 is circular, and the connecting seat 377 can drive the clamping block 375 to move but does not affect the rotation of the clamping block 375 with the rotating shaft 310.

[0084] Embodiment 5

[0085] Please refer to Figure 1- Figure 10 Figure 10 Figure 1 Figure 10 Figure 10 Figure 1 Figure 10 The method for using the steel structure safety belt fixing slide rail for connecting the safety belt buckle comprises the following steps:

[0086] S1, first, the construction personnel install the slide rail 200 on the H-shaped steel beam 100, then install the safety belt on the safety belt buckle 230, and then the construction personnel can start the suspension operation and move along the lower flange of the H-shaped steel beam 100 through the traction of the shell 220;

[0087] S2, when the construction personnel moves along the middle section of the H-shaped steel beam 100, one of the speed limiting mechanisms 300 is triggered to operate according to the moving direction of the construction personnel, at this time, the guide rod 378 slides along the buffer section 3791, if the moving speed of the construction personnel is less than the threshold value set by the speed limiting mechanism 300, the gear 320 is driven to rotate by the rack 330 with the movement of the shell 220, if the moving speed is greater than the threshold value set by the speed limiting mechanism 300, the centrifugal force acting on the pawl 345 is greater than the supporting force provided by the spring 355, so that the pawl 345 is deflected inwardly to the ratchet wheel 341, and is locked with the ratchet wheel 341, so that the rotation of the shaft 310 is stopped;

[0088] S3, when the rotation of the shaft 310 is stopped, the torsion rod 371 is twisted under the action of the inertial force, so that the gear 320 moves a certain distance and then the gear 320 is locked with the rack 330, thereby providing a certain buffer distance for the construction personnel before braking;

[0089] S4, when the construction personnel moves along the two ends of the H-shaped steel beam 100, the guide rod 378 slides along one of the non-buffer sections 3792, the clamping block 375 is inserted into the clamping groove 376 under the driving of the connecting seat 377, so that the shaft 310 is directly connected with the gear 320, at this time, if the moving speed of the construction personnel is greater than the threshold value set by the speed limiting mechanism 300, the shell 220 will immediately stop moving.

[0090] It should be noted that, in the present text, the relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment.

[0091] The above merely describes the preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, several improvements and refinements can be made without departing from the technical principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A steel structure safety belt fixing slide rail for connecting a safety belt buckle, comprising a slide rail (200) mounted on the lower flange of an H-shaped steel beam (100), characterized in that: The sliding rail (200) is provided with a sliding groove (210), and a shell (220) is slidably arranged in the sliding groove (210); the shell (220) is provided with a safety belt buckle (230) for connecting a safety belt; The shell (220) is provided with a speed limiting mechanism (300), the speed limiting mechanism (300) comprises a rotating shaft (310) and a gear (320), the rotating shaft (310) is rotatably arranged on the shell (220), the gear (320) is connected with the rotating shaft (310), and the sliding rail (200) is provided with a rack (330), the rack (330) is engaged with the gear (320); The speed limiting mechanism (300) further comprises a brake assembly (340), the brake assembly (340) comprises an internal ratchet (341) and a pawl (345), the internal ratchet (341) is arranged in the shell (220), the pawl (345) is connected with the rotating shaft (310), and the speed limiting of the shell (220) is realized by the pawl (345) being locked with the internal ratchet (341) when the moving speed of the shell (220) exceeds the threshold value of the speed limiting mechanism (300); The speed limiting mechanism (300) further comprises a buffer assembly (370), the buffer assembly (370) comprises a torsion bar (371), the gear (320) is arranged on the torsion bar (371), the rotating shaft (310) is provided with a connecting barrel (372), the torsion bar (371) is rotatably connected to the connecting barrel (372), the torsion bar (371) is provided with a clamping tooth (373), and the connecting barrel (372) is provided with an internal clamping tooth matched with the clamping tooth (373); When the internal ratchet (341) is locked with the pawl (345), the torsion bar (371) is twisted to provide a buffer distance for the shell (220); The buffer assembly (370) further comprises a polygonal groove (374) formed in the connecting barrel (372), the polygonal groove (374) is slidably provided with a clamping block (375), and the gear (320) is provided with a clamping groove (376) matched with the clamping block (375); The buffer assembly (370) further comprises a connecting seat (377), the clamping block (375) is rotatably connected to the connecting seat (377), the connecting seat (377) is provided with a guide rod (378), the sliding rail (200) is provided with a guide groove (379), and the guide rod (378) is slidably connected in the guide groove (379); The guide groove (379) comprises a buffer section (3791) and two non-buffer sections (3792), wherein the buffer section (3791) is located in the middle of the H-shaped steel beam (100), and the two non-buffer sections (3792) are located at two ends of the H-shaped steel beam (100).

2. The steel structure safety belt fixing slide rail according to claim 1, characterized in that: The brake assembly (340) further comprises a first rotating disc (342) rotatably arranged on the shell (220), the first rotating disc (342) is connected with the rotating shaft (310), and a second rotating disc (343) is arranged on the first rotating disc (342), the second rotating disc (343) is connected with the rotating shaft (310); A rotating rod (344) is rotatably arranged on the first rotating disc (342), the pawl (345) is arranged on the rotating rod (344), and an embedding groove (346) is formed in the second rotating disc (343); The speed limiting mechanism (300) further comprises an elastic assembly (350) for providing a supporting force to the pawl (345).

3. The steel structure safety belt fixing slide rail according to claim 2, characterized in that: The elastic assembly (350) comprises a third rotating disc (351) rotatably arranged in the shell (220), the third rotating disc (351) is connected with the rotating shaft (310), a connecting rod (352) is arranged on the pawl (345), an arc-shaped groove (353) is formed in the third rotating disc (351), a sleeve (354) is slidably arranged in the arc-shaped groove (353), and the connecting rod (352) is movably inserted into the sleeve (354); the elastic assembly (350) further comprises a spring (355), and two ends of the spring (355) are connected with the third rotating disc (351) and the sleeve (354) respectively.

4. The steel structure safety belt fixing slide rail according to claim 3, characterized in that: The speed limiting mechanism (300) further comprises an adjusting assembly (360), the adjusting assembly (360) comprises an adjusting screw (361), a fixed seat (363) is arranged on the third rotating disc (351), the spring (355) is connected with the fixed seat (363), and an adjusting rod (362) is arranged on the adjusting screw (361), and the adjusting rod (362) is slidably connected with the fixed seat (363).

5. The steel structural safety belt fixation rail according to claim 1, characterized in that: The speed limiting mechanism (300) is symmetrically arranged on the shell (220), and the directions of the teeth of the two inner ratchets (341) in the two speed limiting mechanisms (300) are opposite.

6. The steel structural safety belt fixation rail according to claim 1, characterized in that: The sliding rail (200) is provided with a movable plate (240), and the movable plate (240) is connected with the H-shaped steel beam (100) through bolts (250).

7. The method of using a steel structural webbing anchor rail for connecting a webbing buckle according to any one of claims 1-6, wherein, The method comprises the following steps: S1, first, the construction personnel install the sliding rail (200) on the H-shaped steel beam (100), then install the safety belt on the safety belt buckle (230), and then the construction personnel can start the suspension operation and move along the lower flange of the H-shaped steel beam (100) through the traction of the shell (220); S2, when the construction personnel moves along the middle section of the H-shaped steel beam (100), one of the speed limit mechanisms (300) is triggered according to the moving direction, at this time the guide rod (378) slides along the buffer section (3791), if the moving speed of the construction personnel is less than the threshold value set by the speed limit mechanism (300), the gear (320) is driven to rotate by the rack (330) along with the movement of the shell (220), if the moving speed is greater than the threshold value set by the speed limit mechanism (300), the centrifugal force acting on the pawl (345) is greater than the supporting force provided by the spring (355), so that the pawl (345) is deflected inward to the ratchet (341), and is locked with the ratchet (341), so that the rotating shaft (310) stops rotating; S3, when the rotating shaft (310) stops rotating, the torsion bar (371) will be twisted under the action of inertial force, so that the gear (320) moves a certain distance and then stops rotating, and the gear (320) is locked with the rack (330), so as to provide a certain buffer distance for the construction personnel and then brake; S4, when the construction personnel moves along the two ends of the H-shaped steel beam (100), the guide rod (378) slides along one of the non-buffer sections (3792), the clamping block (375) is inserted into the clamping groove (376) under the driving of the connecting seat (377), so that the rotating shaft (310) is directly connected with the gear (320), at this time, if the moving speed of the construction personnel is greater than the threshold value set by the speed limit mechanism (300), the shell (220) will stop moving immediately.

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