CN112854720B - Anti-falling device for C-shaped steel guide rail - Google Patents
Anti-falling device for C-shaped steel guide rail Download PDFInfo
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- CN112854720B CN112854720B CN202011602996.5A CN202011602996A CN112854720B CN 112854720 B CN112854720 B CN 112854720B CN 202011602996 A CN202011602996 A CN 202011602996A CN 112854720 B CN112854720 B CN 112854720B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 17
- 239000010959 steel Substances 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 230000005012 migration Effects 0.000 claims description 3
- 238000013508 migration Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 241001397809 Hakea leucoptera Species 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G2003/286—Mobile scaffolds; Scaffolds with mobile platforms mobile vertically
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Abstract
The invention provides an anti-falling device for a C-shaped steel guide rail, which comprises a main body, a movable body, a hinge seat and a locking part, wherein the main body is provided with a first connecting part and a second connecting part; the main body comprises a first fixing part and a second fixing part, the movable body comprises a movable part and a triggering part, the movable part can horizontally move towards the direction of the second fixing part, the locking part is provided with a first movable end and a second movable end, the first movable end is positioned in the cavity groove, the second movable end is positioned in the first interval, the locking part can move along with the movable part, meanwhile, the second movable end is screwed into the cavity groove, the first movable end is screwed into the first interval, the guide rail moves along the direction of a plumb line, and the flanging is positioned in the first interval and the second interval; the trigger part can be caused to move towards the direction far away from the movable part by the friction force and the downward impact force, so that the first movable end is screwed into the first interval and is abutted against the second fixed part, the flange of the guide rail is fixedly clamped between the first movable end and the second fixed part, and the purpose of preventing the guide rail from falling is achieved.
Description
Technical Field
The invention relates to the technical field of guide rail anti-falling, in particular to an anti-falling device for a C-shaped steel guide rail.
Background
The attached lifting scaffold equipment is a novel scaffold technology which is rapidly developed in the early century, and has important influence on the progress of construction technology in China. It becomes the low place operation with the eminence operation, becomes the inside operation of support body with unsettled operation, has apparent low carbon nature, high-tech content and characteristics such as more economic, safer, more convenient. The attached lifting scaffold is an outer scaffold which is erected at a certain height, attached to an engineering structure, can ascend or descend layer by layer along with the engineering structure by depending on self lifting equipment and devices, and is provided with an anti-overturning and anti-falling device; the attached lifting scaffold mainly comprises a guide rail, an attached lifting scaffold frame body structure, an attached wall supporting seat, an anti-tilting device, an anti-falling device, a lifting mechanism, a control device and the like.
When attaching the wall seat and using with the guide rail cooperation, in order to prevent that the guide rail from accidentally losing to support the back and receiving the influence of gravity and freely falling, generally attach wall seat or guide rail on set up alone and prevent weighing down the mechanism, through adjusting the positive and negative function of preventing weighing down the mechanism for the guide rail can only be along wall body one-way operation, and this kind of structure can lead to the guide rail altitude mixture control inconvenient. The anti-falling device has the advantages that a reliable anti-falling function is achieved on the premise that the passing performance of the normal lifting of the guide rail is not influenced, and the workload of constructors is simplified, so that the anti-falling device is very necessary.
Disclosure of Invention
In view of the above, the invention provides a falling prevention device for a C-shaped steel guide rail, which does not affect the normal lifting of the guide rail and has a good falling prevention function.
The technical scheme of the invention is realized as follows: the invention provides an anti-falling device for a C-shaped steel guide rail, which comprises a wall-attached seat mechanism and a guide rail, wherein the wall-attached seat mechanism is fixedly arranged on a wall surface, the guide rail is provided with a C-shaped opening, flanges are arranged on two sides of the opening, and the anti-falling device also comprises a main body, a movable body, a hinged seat and a locking part; the main body comprises a first fixing part, a second fixing part and a first connecting part, the first fixing part, the first connecting part and the second fixing part are sequentially and fixedly connected, a first interval is reserved between the first fixing part and the second fixing part, a cavity groove is formed in one side, facing the second fixing part, of the first fixing part, and the cavity groove penetrates to the first interval; the movable body comprises a movable part, a triggering part and a second connecting part, the movable part, the second connecting part and the triggering part are sequentially and fixedly connected, a second interval is reserved between the movable part and the triggering part and communicated with the first interval, the movable part is connected to the upper surface of the first fixing part in a sliding mode and can horizontally move towards the direction of the second fixing part, the communication area of the second interval and the first interval is reduced, and the triggering part is located right above the second fixing part; the hinge seat is fixedly connected to the upper surface of the first fixing part and is far away from the second fixing part, and the hinge seat is used for connecting the wall-attached seat mechanism; the locking component is positioned in the cavity groove, the locking component is provided with a first movable end and a second movable end, the first movable end is positioned in the cavity groove, the second movable end is positioned in the first interval, the first movable end and the second movable end simultaneously rotate clockwise or anticlockwise around a plumb line, the locking component can move along with the movable part, the second movable end is simultaneously screwed into the cavity groove, the first movable end is screwed into the first interval, the first movable end is close to the second fixed part, the second movable end is beneficial to the downward and upward movement of the guide rail, and the first movable end blocks the upward and downward movement of the guide rail; the guide rail moves along the plumb line direction, the first connecting portion and the second connecting portion are inserted into the opening, the flanging is located in the first interval and the second interval, when the guide rail freely falls, the triggering portion can horizontally move towards the direction far away from the movable portion, and the flanging is fixedly clamped between the first movable end and the second fixing portion.
On the basis of the technical scheme, preferably, two locking parts are symmetrically arranged in the cavity groove; when the guide rail moves up and down along the plumb line direction at a constant speed, the two second movable ends are aligned to the two flanging plate surfaces in a one-to-one correspondence manner; when the guide rail freely falls, the two first movable ends correspondingly approach the two flanges one to one and fixedly clamp the flanges between the first movable ends and the second fixed part.
On the basis of the above technical solution, preferably, the locking member further includes a sliding rod, the surface of the movable portion is provided with a third sliding chute, the third sliding chute is horizontally and straightly provided and perpendicular to the horizontal moving direction of the movable portion, and the third sliding chute is close to the second space; the vertical fixed connection of slide bar is in first expansion end side, and the slide bar is located first interval, and the slide bar both ends are supported and are leaned on in the chamber groove notch, and slide bar one end continues to extend and insert in the third spout.
Further preferably, the device further comprises a rotating shaft, the surface of the movable part is further provided with a second sliding chute, and the second sliding chute is parallel to the horizontal moving direction of the movable part; the rotating shaft is vertically inserted into the locking component, two ends of the rotating shaft are respectively connected to the upper surface and the lower surface of the cavity groove in a shaft mode, and one end of the rotating shaft penetrates through the surface of the first fixing portion and is inserted into the second sliding groove.
More preferably, a horizontal straight line connecting a point on the central axis of the rotating shaft as a center to a point farthest from the first movable end is N1, and a horizontal straight line connecting a point on the central axis of the rotating shaft as a center to a point farthest from the second movable end is N2, wherein the length of N1 is greater than N2, and the horizontal included angle between N1 and N2 is less than 90 degrees.
On the basis of the technical scheme, preferably, the first movable end and the second movable end are both provided with pulleys, the pulleys of the first movable end move clockwise or anticlockwise around a plumb line, and the pulleys of the second movable end move clockwise or anticlockwise around a horizontal line.
On the basis of the above technical scheme, preferably, still include locating component, locating component includes a plurality of locating pins, and a plurality of first spouts have been seted up to first fixed part upper surface, and first spout is on a parallel with the horizontal migration direction of activity body, and the vertical grafting of locating pin one-to-one is in first spout, and a locating pin one end hub connection is in the activity portion.
Further preferably, the positioning assembly further comprises a pin sleeve, and the pin sleeve is sleeved outside the positioning pin; the outer diameter of the pin sleeve is the same as the width of the first sliding groove, and the inner diameter of the pin sleeve is the same as the outer diameter of the positioning pin.
On the basis of the above technical scheme, preferably, when the triggering portion is located at the initial position, the horizontal straight line distance from the end face of the triggering portion facing the flange to the flange plate surface is not more than the horizontal straight line distance from the end face of the second fixing portion facing the flange to the flange plate surface.
Further preferably, the longitudinal center plane of the second fixing portion is trapezoidal, and the trapezoidal inclined plane is arranged close to the flange plate surface and the ground.
Compared with the prior art, the anti-falling device for the C-shaped steel guide rail has the following beneficial effects:
(1) when the guide rail freely falls, the triggering portion can be caused to move towards the direction far away from the movable portion through friction force and downward impact force, and then the movable portion is pulled to move horizontally relative to the first fixed portion, so that the first movable end is screwed into the first interval and is abutted to the second fixed portion, the flange of the guide rail is fixedly clamped between the first movable end and the second fixed portion, and the purpose of preventing the guide rail from falling is achieved.
(2) The trigger part can be triggered only by large friction force and impact force, so that when the guide rail normally moves up and down in the first interval and the second interval, the trigger part cannot move due to the fact that the guide rail moves at a low speed, and the guide rail cannot be hindered from normally moving.
(3) The movable part translates back and forth to drive the slide bar to move along the third sliding groove, so that the first movable end and the second movable end simultaneously move clockwise or anticlockwise around the rotating shaft, the first movable end is switched into the first interval to be close to the second fixed part to prevent falling, or the first interval is switched or the second movable end is switched into the first interval to be beneficial to the guide rail to move up and down.
(4) When the triggering part is located at the initial position, the horizontal linear distance from the end face, facing the flange, of the triggering part to the flange plate surface is not more than the horizontal linear distance from the end face, facing the flange, of the second fixing part to the flange plate surface, so that on one hand, the speed of the flange contacting the triggering part is increased, and the anti-falling response performance of the device is improved; on the other hand, a certain buffer space is formed between the flanging and the second fixing part, so that the guide rail is prevented from being clamped between the first movable end and the second fixing part.
Drawings
Reference will now be made in detail to the embodiments or drawings that are required for use in the description of the prior art, it being understood that the drawings in the following description are merely exemplary of the invention and that other drawings may be derived therefrom by those skilled in the art without the benefit of the inventive faculty.
FIG. 1 is a top plan view of the fall arrest device of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is a front view of the locking member of the present invention;
FIG. 4 is a top plan view of the activated state of the fall arrest device of the present invention;
FIG. 5 is a top cross-sectional view of the body of the present invention;
fig. 6 is a perspective view of the guide rail of the present invention.
In the figure: 1. a main body; 11. a first fixed part; 12. a second fixed part; 13. a first interval; 14. a cavity groove; 15. a first chute; 16. a first connection portion; 2. a movable body; 21. a movable portion; 22. a trigger section; 23. a second interval; 24. a second chute; 25. a third chute; 26. a second connecting portion; 3. a hinged seat; 4. a locking member; 41. a first movable end; 42. a second movable end; 43. a slide bar; 5. a rotating shaft; 6. a positioning assembly; 61. positioning pins; 62. a pin bush; 7. a guide rail; 71. an opening; 72. and (5) flanging.
Detailed Description
Technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1 and combined with fig. 4 and 6, the anti-falling device for the C-shaped steel guide rail of the invention comprises a wall-attached seat mechanism and a guide rail 7, wherein the wall-attached seat mechanism is fixedly installed on a wall surface, the guide rail 7 is provided with a C-shaped opening 71, flanges 72 are arranged on two sides of the opening 71, and the anti-falling device further comprises a main body 1, a movable body 2, a hinged seat 3, a locking part 4, a rotating shaft 5 and a positioning assembly 6. .
The main body 1 includes a first fixing portion 11, a second fixing portion 12 and a first connecting portion 16, the first fixing portion 11, the first connecting portion 16 and the second fixing portion 12 are sequentially and fixedly connected, a first gap 13 is reserved between the first fixing portion 11 and the second fixing portion 12, a cavity 14 is formed in one side, facing the second fixing portion 12, of the first fixing portion 11, and the cavity 14 penetrates through the first gap 13.
The movable body 2 includes a movable portion 21, a triggering portion 22 and a second connecting portion 26, the movable portion 21, the second connecting portion 26 and the triggering portion 22 are sequentially and fixedly connected, a second gap 23 is left between the movable portion 21 and the triggering portion 22, the second gap 23 is communicated with the first gap 13, the movable portion 21 is slidably connected to the upper surface of the first fixing portion 11 and can horizontally move towards the second fixing portion 12, the communication area between the second gap 23 and the first gap 13 is reduced, and the triggering portion 22 is located right above the second fixing portion 12. It should be noted that the movable bodies 2 may be respectively disposed on the upper and lower surfaces of the main body 1, and the two movable bodies 2 may be fixedly connected to each other by the positioning assembly 6. In addition, in order to improve the reaction efficiency of the trigger 22 when the guide rail 7 falls, the edge of the upper surface of the trigger 22 is preferably rounded or beveled.
The hinge base 3 is fixedly connected to the upper surface of the first fixing portion 11 and away from the second fixing portion 12, and the hinge base 3 is used for connecting the wall-attached base mechanism.
The locking component 4 is located in the cavity groove 14, the locking component 4 is provided with a first movable end 41 and a second movable end 42, the first movable end 41 is located in the cavity groove 14, the second movable end 42 is located in the first interval 13, the first movable end 41 and the second movable end 42 rotate clockwise or anticlockwise around a plumb line simultaneously, the locking component 4 can move along with the movable part 21, meanwhile, the second movable end 42 is screwed into the cavity groove 14, the first movable end 41 is screwed into the first interval 13, the first movable end 41 is close to the second fixed part 12, the second movable end 42 facilitates the up-and-down movement of the guide rail 7, and the first movable end 41 blocks the up-and-down movement of the guide rail 7.
When the technical scheme is adopted, the guide rail 7 moves along the plumb line direction, the first connecting part 16 and the second connecting part 26 are inserted into the opening 71, and the flanging 72 is positioned in the first interval 13 and the second interval 23; when the guide rail 7 falls freely, the speed is extremely high, the side faces of the second fixing portion 12 and the triggering portion 22 can be rubbed, and meanwhile, under the impact of the guide rail 7, the anti-falling device can deflect downwards by a certain angle by taking the hinge seat 3 as an axis, so that under the simultaneous actions of friction force, downward impact force and self gravity, the triggering portion 22 can horizontally move towards the direction away from the movable portion 21, meanwhile, the second movable end 42 is screwed into the cavity groove 14, the first movable end 41 is screwed into the first interval 13, the first movable end 41 is close to the second fixing portion 12, and the flange 72 is fixedly clamped between the first movable end 41 and the second fixing portion 12.
Specifically, the invention is realized by the following technical scheme.
As shown in fig. 1, in conjunction with fig. 2, two locking members 4 are symmetrically disposed in the cavity 14; when the guide rail 7 moves up and down along the plumb line direction at a constant speed, the two second movable ends 42 are aligned with the surfaces of the two flanges 72 one by one; when the guide rail 7 falls freely, the two first movable ends 41 correspondingly approach the two flanges 72 one to one, and the flanges 72 are fixedly clamped between the first movable ends 41 and the second fixed portion 12, so as to support the guide rail 7 from two sides.
As shown in fig. 1 and fig. 3, the locking member 4 further includes a sliding rod 43, the surface of the movable portion 21 is formed with a third sliding slot 25, the third sliding slot 25 is formed horizontally and straightly and perpendicularly to the horizontal moving direction of the movable portion 21, and the third sliding slot 25 is close to the second gap 23.
The sliding rod 43 is vertically and fixedly connected to the side surface of the first movable end 41, the sliding rod 43 is located in the first interval 13, two ends of the sliding rod 43 abut against the notch of the cavity groove 14, and one end of the sliding rod 43 continues to extend and is inserted into the third sliding groove 25.
The surface of the movable portion 21 is further opened with a second sliding slot 24, and the second sliding slot 24 is parallel to the horizontal moving direction of the movable portion 21.
The rotating shaft 5 is vertically inserted into the locking member 4, two ends of the rotating shaft 5 are respectively connected to the upper and lower surfaces of the cavity groove 14, and one end of the rotating shaft 5 penetrates through the surface of the first fixing portion 11 and is inserted into the second sliding groove 24.
When the technical scheme is adopted, the triggering part 22 drives the movable part 21 to move towards the direction far away from the wall surface; during the movement of the movable portion 21, the sliding rod 43 is pushed to move along the third sliding slot 25, so that the locking member 4 rotates, the first movable end 41 is screwed into the first space 13, and the second movable end 42 is screwed into the cavity 14, thereby achieving the position switching between the first movable end 41 and the second movable end 42.
As shown in fig. 1, referring to fig. 5, a horizontal straight line from a point on the central axis of the rotating shaft 5 to the farthest point of the first movable end 41 is N1, and a horizontal straight line from a point on the central axis of the rotating shaft 5 to the farthest point of the second movable end 42 is N2, where N1 is longer than N2, and a horizontal included angle between N1 and N2 is less than 90 degrees, since the sliding rod 43 is gradually away from the notch of the cavity 14 when the movable portion 21 pushes the sliding rod 43 to move, the length of N1 is larger than N2; when the horizontal included angle between the N1 and the N2 is smaller than 90 degrees, the other movable end can be screwed into the cavity groove 14 without rotating 90 degrees when the first movable end 41 or the second movable end 42 is switched, and the requirement on the accommodating volume of the cavity groove 14 is reduced.
In order to guide the movable part 21 to be slidably connected with the first fixing part 11, the positioning assembly 6 comprises a plurality of positioning pins 61, the upper surface of the first fixing part 11 is provided with a plurality of first sliding grooves 15, the first sliding grooves 15 are parallel to the horizontal moving direction of the movable body 2, the positioning pins 61 are vertically inserted into the first sliding grooves 15 in a one-to-one correspondence manner, and one end of each positioning pin 61 is coupled to the movable part 21. Wherein, the positioning components 6 are at least two groups, and the two groups of positioning components 6 are symmetrically arranged to avoid the left and right deviation of the movable part 21 and the first fixed part 11; it is also possible to provide two movable bodies 2 to sandwich the main body 1 up and down, and to have both ends of the positioning pin 61 coupled to the two movable bodies 2, respectively.
Further, the positioning assembly 6 further includes a pin sleeve 62, and the pin sleeve 62 is sleeved outside the positioning pin 61, so that the positioning pin 61 moves more smoothly in the first sliding slot 15, and the relative position of the first fixed portion 11 and the movable portion 21 is prevented from being shifted due to the thinness of the positioning pin 61; the outer diameter of the pin bush 62 is the same as the width of the first slide groove 15, and the inner diameter of the pin bush 62 is the same as the outer diameter of the positioning pin 61.
In the present invention, as a further improvement, when the triggering portion 22 is located at the initial position, the horizontal straight distance from the end surface of the triggering portion 22 facing the flange 72 to the plate surface of the flange 72 does not exceed the horizontal straight distance from the end surface of the second fixing portion 12 facing the flange 72 to the plate surface of the flange 72; therefore, when the guide rail 7 falls freely, the flanging 72 is inevitably contacted with the triggering part 22 firstly and triggers the triggering part to move away from the wall surface, so that the anti-falling response performance of the device is improved; on the other hand, when the guide rail 7 normally moves up and down, a certain buffer space is formed between the flange 72 and the second fixing portion 12, so that the guide rail 7 is prevented from being clamped between the first movable end 41 and the second fixing portion 12.
Furthermore, the longitudinal center plane of the second fixing portion 12 is trapezoidal, and the trapezoidal inclined plane is close to the surface of the flange 72 and the ground, so that when the guide rail 7 falls down and the driving device turns over downwards, the contact area between the surface of the flange 72 and the end surface of the second fixing portion 12 is increased, and the anti-falling performance is improved.
As an alternative embodiment, pulleys are mounted on the first movable end 41 and the second movable end 42, the pulley of the first movable end 41 performs clockwise or counterclockwise motion around a plumb line, and the pulley of the second movable end 42 performs clockwise or counterclockwise motion around a horizontal line.
As an alternative embodiment, the positioning assemblies 6 are at least two groups, and the two groups of positioning assemblies 6 are symmetrically arranged.
The working principle is as follows:
when the guide rail 7 falls freely, the speed is extremely high, the side surfaces of the second fixing part 12 and the triggering part 22 can be rubbed, and meanwhile, under the impact of the guide rail 7, the anti-falling device can deflect downwards by a certain angle by taking the hinged seat 3 as an axis, so that under the simultaneous action of the friction force, the downward impact force and the self gravity, the triggering part 22 moves towards the direction far away from the movable part 21, namely, the anti-falling function of the triggering device is triggered. It should be noted that, when the device is installed on the wall-attached seat mechanism, the device can only be turned over up and down within a limited range, so that the guide rail 7 can not be driven by friction force to turn over at a larger angle when moving up and down normally.
The trigger part 22 drives the movable part 21 to move in the direction away from the wall surface; during the movement of the movable portion 21, the sliding rod 43 is pushed to move along the third sliding slot 25, so that the locking member 4 rotates, the first movable end 41 is screwed into the first space 13, and the second movable end 42 is screwed into the cavity 14, thereby achieving the position switching between the first movable end 41 and the second movable end 42.
The pulley of the second movable end 42 moves clockwise or counterclockwise around the horizontal line, thereby facilitating the normal up-and-down movement of the guide rail 7 and avoiding the problem of the trigger part 22 caused by mistake during the normal up-and-down movement of the guide rail 7; and the pulley of the first movable end 41 moves clockwise or counterclockwise around the plumb line, so that the first movable end 41 is screwed in and abuts against and is pressed on the surface of the flange 72, the friction force between the first movable end 41 and the flange 72 is increased, and the anti-falling effect is improved.
Because the flange 72 of the guide rail 7 is located in the first space 13 and the second space 23, and the position of the second fixing portion 12 is fixed, when the movable portion 21 moves forward and the first movable end 41 is screwed into the first space 13, the linear distance from the first movable end 41 to the second fixing portion 12 is greatly shortened, and the flange 72 is clamped between the first movable end 41 and the second fixing portion 12 to obtain temporary fixation, that is, the anti-falling of the guide rail 7 is realized.
It should be noted that the device actually has the effect of hindering the rapid fall of the rail 7, rather than being fixed to the rail 7, and therefore the locking element 4 does not have the ability to lock the position of the first movable end 41, while the fall arrest effectiveness can occur many times and continuously during the free fall of the rail 7, since repeated falling impacts of the rail 7 may occur.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The utility model provides an anti-falling device for C shaped steel guide rail, is including attaching wall seat mechanism and guide rail (7), attaches wall seat mechanism fixed mounting on a wall, and opening (71) of a C shape are seted up in guide rail (7), and opening (71) both sides have turn-ups (72), its characterized in that: the device also comprises a main body (1), a movable body (2), a hinged seat (3) and a locking part (4);
the main body (1) comprises a first fixing part (11), a second fixing part (12) and a first connecting part (16), the first fixing part (11), the first connecting part (16) and the second fixing part (12) are sequentially and fixedly connected, a first interval (13) is reserved between the first fixing part (11) and the second fixing part (12), a cavity groove (14) is formed in one side, facing the second fixing part (12), of the first fixing part (11), and the cavity groove (14) penetrates through the first interval (13);
the movable body (2) comprises a movable part (21), a triggering part (22) and a second connecting part (26), the movable part (21), the second connecting part (26) and the triggering part (22) are sequentially and fixedly connected, a second interval (23) is reserved between the movable part (21) and the triggering part (22), the second interval (23) is communicated with the first interval (13), the movable part (21) is connected to the upper surface of the first fixing part (11) in a sliding mode, can horizontally move towards the direction of the second fixing part (12) and enables the communication area of the second interval (23) and the first interval (13) to be reduced, and the triggering part (22) is located right above the second fixing part (12);
the hinged seat (3) is fixedly connected to the upper surface of the first fixing part (11) and is far away from the second fixing part (12), and the hinged seat (3) is used for connecting a wall-attached seat mechanism;
the locking part (4) is positioned in the cavity groove (14), and the locking part (4) is provided with a first movable end (41), a second movable end (42) and a sliding rod (43); the first movable end (41) is located in the cavity groove (14) and the second movable end (42) is located in the first interval (13), the first movable end (41) and the second movable end (42) rotate clockwise or anticlockwise around a plumb line simultaneously and rotate along with the movement of the movable part (21) to enable the second movable end (42) to be screwed into the cavity groove (14) and the first movable end (41) to be screwed into the first interval (13), the first movable end (41) is enabled to be close to the second fixed part (12), the second movable end (42) is beneficial to the up-down movement of the guide rail (7), and the first movable end (41) blocks the up-down movement of the guide rail (7); a third sliding groove (25) is formed in the surface of the movable part (21), the third sliding groove (25) is horizontally and straightly formed and is perpendicular to the horizontal moving direction of the movable part (21), and the third sliding groove (25) is close to the second interval (23); the sliding rod (43) is vertically and fixedly connected to the side face of the first movable end (41), the sliding rod (43) is located in the first interval (13), two ends of the sliding rod (43) abut against the notch of the cavity groove (14), and one end of the sliding rod (43) continuously extends and is inserted into the third sliding groove (25);
guide rail (7) are followed plumb line direction and are removed, first connecting portion (16) and second connecting portion (26) all insert opening (71) in, just turn-ups (72) are located first interval (13) and second interval (23), work as during guide rail (7) free fall, can make trigger portion (22) is to the direction horizontal migration who keeps away from movable part (21), and make turn-ups (72) fixed centre gripping is between first expansion end (41) and second fixed part (12).
2. The fall arrest device for a C-section steel guide rail according to claim 1, wherein: the two locking parts (4) are symmetrically arranged in the cavity groove (14);
when the guide rail (7) moves up and down along the vertical line direction at a constant speed, the two second movable ends (42) are aligned to the surfaces of the two flanges (72) in a one-to-one correspondence manner;
when the guide rail (7) falls freely, the two first movable ends (41) correspondingly approach the two flanges (72) one by one and fixedly clamp the flanges (72) between the first movable ends (41) and the second fixed part (12).
3. The fall arrest device for a C-section steel guide rail according to claim 1, wherein: the device also comprises a rotating shaft (5), a second sliding groove (24) is formed in the surface of the movable part (21), and the second sliding groove (24) is parallel to the horizontal moving direction of the movable part (21);
the rotating shaft (5) is vertically inserted into the locking component (4), two ends of the rotating shaft (5) are respectively connected to the upper surface and the lower surface of the cavity groove (14) in a shaft mode, and one end of the rotating shaft (5) penetrates through the surface of the first fixing portion (11) and is inserted into the second sliding groove (24).
4. The fall arrest device for a C-section steel guide rail according to claim 3, characterized in that: a horizontal straight line formed by connecting a point on the central axis of the rotating shaft (5) serving as a circle center to the farthest point of the first movable end (41) is N1, a horizontal straight line formed by connecting a point on the central axis of the rotating shaft (5) serving as a circle center to the farthest point of the second movable end (42) is N2, the length of N1 is larger than N2, and a horizontal included angle between N1 and N2 is smaller than 90 degrees.
5. The fall arrest device for a C-section steel guide rail according to claim 1, wherein: all install the pulley on first expansion end (41) and second expansion end (42), clockwise or anticlockwise motion is done around the plumb line to the pulley of first expansion end (41), clockwise or anticlockwise motion is done around the level line to the pulley of second expansion end (42).
6. The fall arrest device for a C-section steel guide rail according to claim 1, wherein: still include locating component (6), locating component (6) include a plurality of locating pins (61), a plurality of first spout (15) have been seted up to first fixed part (11) upper surface, first spout (15) are on a parallel with the horizontal migration direction of activity body (2), the vertical grafting of locating pin (61) one-to-one is in first spout (15), locating pin (61) one end coupling is in activity portion (21).
7. The fall arrest device for a C-section steel guide rail according to claim 6, characterized in that: the positioning assembly (6) further comprises a pin sleeve (62), and the pin sleeve (62) is sleeved outside the positioning pin (61); the outer diameter of the pin sleeve (62) is the same as the width of the first sliding groove (15), and the inner diameter of the pin sleeve (62) is the same as the outer diameter of the positioning pin (61).
8. The fall arrest device for a C-section steel guide rail according to claim 1, wherein: when the triggering part (22) is located at the initial position, the horizontal straight-line distance from the end face, facing the flange (72), of the triggering part (22) to the plate face of the flange (72) is not more than the horizontal straight-line distance from the end face, facing the flange (72), of the second fixing part (12) to the plate face of the flange (72).
9. The fall arrest device for a C-section steel guide rail according to claim 8, wherein: the longitudinal central plane of the second fixing part (12) is trapezoidal, and the trapezoidal inclined plane is arranged close to the surface of the flanging (72) and the ground.
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JPH11343742A (en) * | 1998-05-30 | 1999-12-14 | Isao Maekawa | Safety fence |
WO2010128340A2 (en) * | 2009-05-08 | 2010-11-11 | Stuart Arnold | Fall prevention system and access ladder |
JP2013083461A (en) * | 2011-10-06 | 2013-05-09 | Tokyo Electric Power Co Inc:The | Displacement measuring apparatus for long material |
KR20200018124A (en) * | 2018-08-10 | 2020-02-19 | 주식회사 포스코 | Safety apparatus and method for securing safety of worker using the same |
CN210622278U (en) * | 2019-08-30 | 2020-05-26 | 河北国益工程技术有限公司 | Portable all-steel lifting climbing frame with triple anti-falling mechanism |
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KR200240266Y1 (en) * | 1999-03-06 | 2001-09-13 | 신동철 | Aaaaa |
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JPH11343742A (en) * | 1998-05-30 | 1999-12-14 | Isao Maekawa | Safety fence |
WO2010128340A2 (en) * | 2009-05-08 | 2010-11-11 | Stuart Arnold | Fall prevention system and access ladder |
JP2013083461A (en) * | 2011-10-06 | 2013-05-09 | Tokyo Electric Power Co Inc:The | Displacement measuring apparatus for long material |
KR20200018124A (en) * | 2018-08-10 | 2020-02-19 | 주식회사 포스코 | Safety apparatus and method for securing safety of worker using the same |
CN210622278U (en) * | 2019-08-30 | 2020-05-26 | 河北国益工程技术有限公司 | Portable all-steel lifting climbing frame with triple anti-falling mechanism |
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