CN210342633U - Anti-falling device and protective frame - Google Patents

Abstract

The utility model relates to an anti-falling device and protection frame. A fall arrest device for connecting a first component and a second component, the fall arrest device comprising: the device body is fixedly connected with the first component; the device body is provided with a guide groove for the sliding arrangement of the second component, and the guide groove is communicated along the vertical direction; a fitting member rotatably connected to the apparatus body about an axis; and during the rotation of the matching piece around the axis, the opposite ends of the matching piece are respectively matched with the second component so as to prevent the first component or the second component from falling.

Description

Anti-falling device and protective frame

Technical Field

The utility model relates to a construction equipment field especially relates to an anti-falling device and protection frame.

Background

At present, in the construction of high-rise buildings, the attached climbing protection frame has the advantages of good economic performance, good safety, convenient use, high efficiency and the like, and gradually replaces the traditional bottom supporting fixed protection frame.

However, the climbing protection frame is in the lifting process, the frame body and the guide rail of the climbing protection frame are prone to falling accidents, and the safety is poor.

SUMMERY OF THE UTILITY MODEL

Therefore, the anti-falling device and the protection frame which improve the defects are needed to solve the problems that the frame body and the guide rail of the climbing protection frame are easy to fall and have poor safety in the lifting process.

A fall arrest device for connecting a first component and a second component, the fall arrest device comprising:

the device body is fixedly connected with the first component; the device body is provided with a guide groove for the sliding arrangement of the second component, and the guide groove is communicated along the vertical direction;

a fitting member rotatably connected to the apparatus body about an axis; and during the rotation of the matching piece around the axis, the opposite ends of the matching piece are respectively matched with the second component so as to prevent the first component or the second component from falling.

Above-mentioned anti-falling device when promoting the first part, cooperatees with the second part through the one end of fitting piece to prevent that the first part from moving downwards relative to the second part, and then prevent that the first part from falling. When the second component is lifted, the opposite other end of the matching piece is matched with the second component, so that the second component is prevented from moving downwards relative to the first component, and the second component is prevented from falling. Therefore, the anti-falling device can effectively prevent the first component or the second component from falling, and the safety is improved.

In one embodiment, the engagement member includes a first position and a second position during rotation about the axis;

when the mating member is in the first position, one end of the mating member mates with the second component to prevent the first component from falling;

when the mating member is in the second position, the opposite end of the mating member mates with the second component to prevent the second component from falling.

In one embodiment, the fitting includes a first end and a second end opposite the first end;

when the mating member is in the first position, the first end abuts an upwardly facing surface of the second member to support the first member; the second end is abutted against the device body so as to prevent the matching piece from rotating;

when the mating member is in the second position, the second end abuts a downwardly facing surface of the second member to support the second member; the first end abuts against the device body to prevent the fitting from rotating.

In one embodiment, the connection point of the mating member to the device body is located between the first end and the second end.

In one embodiment, the mating member is a half-moon block.

In one embodiment, the fall arrest device further comprises a shaft rotatably connected to the device body, and the mating member is fixedly connected to the shaft.

In one embodiment, the fall arrest device further comprises a lever and a resilient member;

the operating handle is fixedly connected with the rotating shaft, and the elastic piece is connected with the operating handle and the device body so as to provide pre-tightening force for driving the rotating shaft to rotate around a preset direction by the operating handle.

In one embodiment, the axis is parallel to a horizontal plane.

In one embodiment, the device body comprises a first mounting plate and a falling prevention box fixedly connected to one side of the first mounting plate;

the first mounting plate is used for being fixedly connected to the first component, the guide groove is formed in one side, away from the first mounting plate, of the anti-falling box, and the guide groove is provided with an opening communicated with an inner cavity of the anti-falling box;

the fitting piece is positioned in the inner cavity of the anti-falling box, can penetrate into the guide groove through the opening and is matched with the second component.

A protective frame comprises a wall-attached support, a first part, a second part and the anti-falling device in any embodiment;

the wall-attached support is used for being fixedly connected to a wall body; the second member is a guide rail configured to be slidably coupled to the wall attachment bracket upwardly along the wall attachment bracket; the first part is a frame body which is slidably connected to the guide rail and is connectable to or separable from the wall-attached support.

Drawings

Fig. 1 is a side view of a protective frame according to an embodiment of the present invention;

FIG. 2 is a schematic view of the fall arrest device of the protective frame of FIG. 1;

FIG. 3 is a schematic view of the mating piece of the fall arrest device of FIG. 2;

FIG. 4 is a schematic view of the engagement piece and guide rail of the fall arrest device of FIG. 2;

FIG. 5 is a front view of the protective frame of FIG. 1;

FIG. 6 is a schematic structural view of a wall-attached support of the protective frame shown in FIG. 1;

FIG. 7 is a schematic structural view of the wall attachment bracket of FIG. 6 from another perspective;

FIG. 8 is a schematic illustration of the drop guard configuration of the wall attachment support of FIG. 6;

FIG. 9 is a schematic structural view of a guide rail of the protective frame shown in FIG. 1;

FIG. 10 is a top view of the guide rail shown in FIG. 9;

FIG. 11 is a schematic structural view of the power mechanism of the protection frame shown in FIG. 1;

fig. 12 is a schematic view of the power mechanism shown in fig. 11 from another perspective;

fig. 13 is an internal structure of the mechanism body of the power mechanism shown in fig. 11;

FIG. 14 is a schematic view of a connection structure between a wall hanging member and a wall attaching support of the protective frame shown in FIG. 1;

FIG. 15 is a schematic structural view of the shelf top wall apparatus shown in FIG. 1;

fig. 16 is a schematic view showing the structure of the guide rail ceiling device shown in fig. 1.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

With the development of modern industrial technology, the building of houses can also be made in batches, like production machines. The prefabricated building components are assembled on the construction site to form the prefabricated building. At present, the assembly type building is very popular in Europe, America and Japan and is in the beginning stage in China. According to the plan of the building department, the proportion of the assembled building in the new building is more than 50% by 2025. Compared with the traditional cast-in-place integral building, the fabricated building has the following advantages: the components can be produced in a standardized and large-scale manner, are hardly influenced by weather conditions and are more reliable in quality; material waste in the construction process is reduced, building waste on the construction site is greatly reduced, and energy conservation and environmental protection are facilitated; thirdly, the components are transported to a construction site for assembly after being produced, so that a part of procedures are reduced, and the construction progress is greatly accelerated; fourthly, the components are produced in a factory, so that the manpower requirement is reduced, and the labor intensity of constructors is reduced; and fifthly, because the laminated slab is used as a bottom film of the floor slab, and the exterior cladding panel is used as a side template of the shear wall, a large number of templates are saved.

At present, in the main body protection of the fabricated building, the main body protection operation is mostly carried out by using an attached lifting scaffold or a steel pipe frame. The height of the frame body of the existing attached scaffold is usually 13.5 meters, 18 meters and the like, the protection height of an assembly type building is only 7.5 meters, and the traditional attached scaffold is very material-consuming, so that the material and the cost are not saved. In addition, the guide rail and the frame body of the traditional attached scaffold are connected into a whole, the lifting power device usually adopts an electric hoist, after a layer of nodes are lifted, the electric hoist needs to be turned over and moved up by one layer, and the electric hoist is heavy, so that workers are very laboured in the carrying process, the labor intensity of the workers is increased invisibly, and unsafe factors can also occur in the process of picking and hanging the electric hoist. It is apparent that the conventional attached lifting scaffold or steel pipe frame is not suitable for the fabricated building.

Therefore, it is necessary to provide a protection frame which is not required to move a power mechanism for providing lifting force upwards in a turnover manner after lifting the power mechanism upwards for one floor, thereby saving labor and reducing labor intensity, and is more suitable for assembly type buildings.

Fig. 1 shows a side view of a protective frame according to an embodiment of the present invention. Fig. 6 shows a schematic structural view of the wall-attached support of the protective frame shown in fig. 1. Fig. 9 shows a schematic view of the structure of the guide rail of the protective frame shown in fig. 1. Fig. 11 is a schematic structural view of the power mechanism of the protection frame shown in fig. 1. For the purpose of illustration, the drawings show only the structures pertinent to the present invention.

As shown in fig. 1, an embodiment of the present invention provides a protective frame, which includes a wall-attached support 10, a guide rail 20, a frame body 30, and a power mechanism 40 (see fig. 11).

Referring to fig. 6 and 9, the wall-attached support 10 is fixedly connected to the wall a. The guide rail 20 is configured to be slidably coupled to the wall attachment bracket 10 upwardly along the wall attachment bracket 10. The frame body 30 is slidably coupled to the guide rail 20 and is attachable to and detachable from the wall attachment bracket 10.

Referring to fig. 11, the power mechanism 40 includes a mechanism body 41 provided with a chain wheel system and a lifting chain 42. The mechanism body 41 is fixedly connected to the frame 30, the lifting chain 42 is wound around the chain wheel system, and both ends of the lifting chain 42 are fixedly connected to the guide rail 20.

The frame 30 includes a fixed state and a lifting state. When the frame body is in a fixed state, the frame body 30 is connected to the wall-attached support 10, and the chain wheel system drives the guide rail 20 to perform a lifting motion through the lifting chain 42. When the frame 30 is in the lifted state, the frame 30 is separated from the wall-attached support 10, and the chain wheel drives the frame 30 to perform a lifting motion through the lifting chain 42.

In the actual construction process, when the frame body 30 needs to be lifted, first, the frame body 30 is separated from the wall-attached support 10, so that the frame body 30 is in a lifted state, and at this time, the frame body 30 can slide up and down along the guide rail 20. Then, the sprocket of the power mechanism 40 drives the frame body 30 to perform a lifting motion through the lifting chain 42, that is, the frame body 30 slides upwards along the guide rail 20, thereby achieving the lifting of the frame body 30. When the shelf 30 is lifted to the proper position, the shelf 30 is coupled to the wall attachment bracket 10 to prevent the shelf 30 from falling. When the guide rail 20 needs to be lifted, the frame body 30 is in a fixed state, and the chain wheel system of the power mechanism 40 drives the guide rail 20 to perform a lifting motion through the lifting chain 42, that is, the guide rail 20 slides upwards along the wall-attached support 10, so that the guide rail 20 is lifted. At this time, the frame body 30 is coupled to the wall-attached support 10, so that the frame body 30 is fixed with respect to the wall a and the guide rail 20 slides upward with respect to the frame body 30.

Thus, when the guide rail 20 is lifted to the desired position, the above steps of lifting the frame body 30 may be repeated, and the frame body 30 may be lifted again. That is to say, the utility model discloses a support body 30 and the 20 accessible power unit 40 circulations of guide rail of protection frame promote, compare with prior art, are adapted to the main part protection of assembly type structure more, need not promote support body 30 to shift up the one deck with power unit 40 week after the one deck node to reduce intensity of labour, promoted the efficiency of construction.

Referring to fig. 5, it should be noted that, in an embodiment, the guide rails 20 may include two or more guide rails 20, and the two or more guide rails 20 are arranged at intervals along the horizontal direction and extend along the vertical direction. Therefore, the stability and the safety of the protective frame are improved. Further, a plurality of wall attaching brackets 10 may be provided for each rail 20. Therefore, the stability and the safety of the protective frame are further improved.

Preferably, the shelf 30 may have an overall height of 7.5 meters. As the protection height of the fabricated building only needs 7.5 meters, the protection frame is further more suitable for the fabricated building.

Fig. 7 shows a schematic view of the wall-attached support 10 shown in fig. 6 from another perspective. Fig. 8 shows a schematic illustration of the safety brake lining 16 of the wall attachment support 10 shown in fig. 3.

Referring to fig. 6, 7 and 8, in an embodiment of the present invention, the guide rail 20 has a limiting portion 24, and the limiting portion 24 and the wall-attached support 10 can cooperate with each other to prevent the guide rail 20 from sliding downward relative to the wall-attached support 10. Thus, when the rail 20 is lifted to the proper position, the position-limiting portion 24 is engaged with the wall attachment bracket 10. At this time, the weight of the guide rail 20 or the load applied to the guide rail 20 is transmitted to the wall attachment bracket 10 through the stopper portion 24, and further transmitted to the wall a.

In some embodiments, the wall attachment bracket 10 includes a bracket body 11 and a detent 12. The holder body 11 is fixedly connected with the wall a, and the guide rail 20 is slidably connected to the holder body 11. The braking member 12 is rotatably connected to the top of the holder body 11 about a first axis for abutting against the bottom of the limiting portion 24 to prevent the guide rail 20 from sliding downward. Thus, when the guide rail 20 is lifted, the guide rail 20 moves upwards and is in sliding fit with the wall-attached support 10 located on the upper layer of the wall body a, and the braking part 12 can rotate relative to the support body 11, so that the limiting part 24 of the guide rail 20 can push the braking part 12 open when moving upwards along with the guide rail 20, the limiting part 24 moves to the upper part of the braking part 12, the bottom of the limiting part 24 can be abutted against the braking part 12, the braking part 12 is supported on the support body 11, and at the moment, the guide rail 20 is lifted to the position. When the guide rail 20 is lifted to the right, the self weight of the guide rail 20 and the load applied thereto are transmitted to the holder body 11 through the stopper 12 and further to the wall a. Optionally, the first axis is parallel to a horizontal plane.

In one embodiment, the stop 24 may be wedge-shaped. In this way, the head of the wedge-shaped stopper portion 24 can be made to face downward and be used against the stopper 12. Moreover, the inclined surface of the position-limiting portion 24 is beneficial to enable the position-limiting portion 24 to penetrate through the wall-attached support 10 to the upper side of the braking member 12 when the guide rail 20 is lifted. It will be appreciated that the stop 24 is not limited to being wedge-shaped. In other embodiments, the shape may be other shapes as long as the shape can abut against the braking member 12 to prevent the rail 20 from sliding downwards, and is not limited herein.

In the embodiment, the holder body 11 has a first guide groove 1120 penetrating in the up-down direction, and the guide rail 20 is slidably fitted to the first guide groove 1120 so that the guide rail 20 is slidably coupled to the holder body 11 in the up-down direction. Further, the stopper 12 is located at the top end of the first guide groove 1120. In this way, the bottom of the stopper portion 24 is urged against the stopper 12, thereby preventing the guide rail 20 from moving downward.

In an embodiment, the wall-attached support 10 further includes a first rotating shaft 14, and the braking member 12 is pivotally connected to the support body 11 through the first rotating shaft 14, so that the braking member 12 can rotate relative to the support body 11. Thus, when the rail 20 is lifted (i.e., the rail 20 slides upward) and penetrates into the first guide groove 1120 of the wall-attached support 10 installed on the upper wall, the stopper portion 24 pushes the stopper 12 open, so that the stopper 12 rotates upward around the first rotation shaft 14. When the position-limiting portion 24 moves upward above the braking member 12, the braking member 12 rotates downward around the first rotating shaft 14 to a position below the position-limiting portion 24 and above the support body 11 under the action of gravity.

In an embodiment, a connecting portion 13 is fixedly connected to one side of the braking member 12, the connecting portion 13 has a through hole (not shown), and the first rotating shaft 14 is inserted into the through hole, so that the braking member 12 is rotatably connected to the first rotating shaft 14 around the first rotating shaft 14. Further, the through hole is a kidney-shaped hole. A first elastic element 15 is further arranged between the braking element 12 and the first rotating shaft 14, and the first elastic element 15 is used for providing pre-tightening force for enabling the braking element 12 to move towards the guide rail 20. Thus, when the limiting portion 24 abuts against the braking member 12 located below the limiting portion, the braking member 12 is always abutted against the guide rail 20 under the action of the first elastic member 15, and the braking member 12 is prevented from being extruded by the limiting portion 24 and the support body 11 to be separated, so that the guide rail 20 is prevented from falling.

In specific embodiments, the wall-attached support 10 further comprises a falling-preventing member 16, and the falling-preventing member 16 is fixedly connected to the wall a and clamped with the support body 11. So, when support body 11 leads to breaking away from with wall body a because of the atress is too big or other reasons, prevent weighing down piece 16 and can fix support body 11, play and prevent that guide rail 20 and support body 30 from taking place the accident of falling, promote the security of protection frame.

Further, the holder body 11 has a card slot 1100. The anti-falling member 16 includes a fixing plate 162 and a clamping member 164, the fixing plate 162 is used for being fixedly connected to the wall a, and the clamping member 164 is fixedly connected to the fixing plate 162 and clamped to the clamping groove 1100 of the support body 11.

Specifically, in the embodiment, the support body 11 includes a first base plate 110 and two first ear plates 112 fixedly connected to one side of the first base plate 110, the first base plate 110 is used for being fixedly connected to the wall a, and the two first ear plates 112 are oppositely disposed to form a first guide groove 1120 penetrating in the vertical direction. Further, each first ear plate 112 is further fixedly connected with two first limiting plates 114 towards one side of the other first ear plate 112, the two first limiting plates 114 are arranged at intervals along the horizontal direction, and a first sliding groove 1140 for the guide rail 20 to penetrate along the up-down direction is formed between the two first limiting plates 114, so that when the guide rail 20 is lifted, the guide rail 20 can only slide relative to the support body 11 along the up-down direction.

Specifically, in the embodiment, the first limiting plate 114 is an arc-shaped plate, so that the upper end and the lower end of the first sliding groove are both in a trumpet shape, which facilitates the penetration of the guide rail 20 into the first sliding groove 1140.

Fig. 14 shows a schematic view of the connection structure of the wall hanging member 50 and the wall attaching support 10 in one embodiment.

Referring to fig. 14, in an embodiment of the present invention, the protective frame further includes a wall-hanging member 50 mounted on the frame body 30. The wall hanging member 50 is detachably coupled to the wall attachment bracket 10 to couple or decouple the housing body 30 to or from the wall attachment bracket 10. In this manner, when it is required to lift the frame body 30, the wall hanging member 50 can be separated from the wall attachment base 10 so that the frame body 30 can slide in the up-down direction with respect to the guide rail 20. When the shelf body 30 is lifted to a desired position, the wall hanging member 50 is coupled to the wall attachment bracket 10, thereby fixedly coupling the shelf body 30 to the wall attachment bracket 10.

In the embodiment, the wall hanging member 50 further has a second guide groove 520 penetrating in the up-down direction, and the guide rail 20 is slidably fitted to the second guide groove 520. In this manner, when the carrier 30 is lifted, the carrier 30 slides upward along the guide rail 20; when the rail 20 is lifted, the rail 20 slides upward along the second guide groove 520.

Further, the wall-mounted component 50 includes a second base plate 51 and two second ear plates 52 fixedly connected to one side of the second base plate 51, and the two second ear plates 52 are oppositely disposed, so that a second guide groove 520 penetrating in the vertical direction is formed between the two second ear plates 52. Further, each second ear plate 52 is fixedly connected with two second limiting plates 53 towards one side of the other second ear plate 52, the two second limiting plates 53 are arranged along the horizontal direction, and a second sliding groove 530 for the guide rail 20 to penetrate through along the vertical direction is formed between the two second limiting plates 53, so that when the frame body 30 is lifted, the frame body 30 can only move relative to the guide rail 20 along the vertical direction.

Fig. 10 shows a top view of the guide rail 20 in an embodiment.

Referring to fig. 9 and 10 together, it should be noted that in one embodiment, the guide rail 20 may be an H-shaped steel. One flange 22 of the H-beam penetrates the first sliding groove 1140, and the other flange 22 penetrates the second sliding groove 530. Thus, the wall-attached support 10 and the frame body 30 both hold the guide rail 20 tightly, and the guide rail 20 and the frame body 30 both move in the up-down direction when the guide rail 20 and the frame body 30 are lifted up, respectively. The guide rail 20 may be, but is not limited to, an H-shaped steel, and in other embodiments, may be an i-shaped steel, and the like, and is not limited thereto.

With continued reference to fig. 14, in some embodiments, the protective frame further includes a pin 54. The pin 54 can penetrate through the wall hanging piece 50 and the wall attaching support 10, thereby realizing the detachable connection of the wall hanging piece 50 and the wall attaching support 10. Therefore, when the wall hanging piece 50 needs to be separated from the wall attaching support 10, the pin shaft 54 only needs to be pulled out, and the operation is convenient and quick.

In the embodiment, the two first ear plates 112 have corresponding first through holes, and the two second ear plates 52 have corresponding second through holes. The pin 54 can be inserted through the first through holes of the two first ear plates 112 and the second through holes of the two second ear plates 52, so as to detachably connect the wall-hanging piece 50 and the wall-attached support 10. Further, the second through hole may be a kidney-shaped hole, so that the second through hole is conveniently aligned with the first through hole, and the insertion of the pin 54 is facilitated.

Fig. 15 shows a schematic view of the structure of the shelf top wall device 60 in one embodiment.

Referring to fig. 15, in an embodiment of the present invention, the protection frame further includes a frame body top wall device 60. The shelf body top wall device 60 is disposed on the shelf body 30, and is used for adjusting a distance between the shelf body 30 and the wall body a. Thus, the verticality of the frame body 30 can be adjusted.

In some embodiments, the shelf top wall device 60 includes a first mounting seat 61 and a first post 62. The first mounting seat 61 is mounted to the frame body 30. The first top rod 62 is connected to the first mounting seat by screw threads and is used for abutting against the wall a. In this way, since the first push rod 62 is screwed to the first mounting seat 61, the distance between the frame body 30 and the wall a can be adjusted by rotating the first push rod 62, so as to ensure the verticality of the frame body 30. Preferably, the first mounting seat 61 is mounted at the bottom of the frame body 30 to reduce the force applied to the frame body top wall device 60 as much as possible, so that the first push rod 62 can be rotated to adjust the verticality of the frame body 30.

In the embodiment, the first carrier rod 62 is a threaded rod, and the first mounting seat 61 has a first threaded hole. One end of the first top rod 62 is in threaded connection with the first threaded hole, and the other opposite end is used for abutting against the wall a.

In the embodiment, the frame body top wall device 60 further includes a first top wall plate 63, and the first top wall plate 63 is fixedly connected to one end of the first top rod 62 and is used for abutting against the wall body a. So, the setting of first top wallboard 63 has increased the area of contact with wall body a, is favorable to improving the life of support body top wall device 60.

In some embodiments, the shelf top wall device 60 has a third guide groove 640 extending therethrough in the up-down direction, and the guide rail 20 is slidably fitted into the third guide groove 640. In this manner, it is further ensured that the frame body 30 slides along the guide rail 20 (i.e., slides in the up-down direction) when the frame body 30 or the guide rail 20 is lifted.

In one embodiment, the frame top wall device 60 further includes two third ear plates 64 fixedly connected to one side of the first mounting seat 61, and the two third ear plates 64 are oppositely disposed to form a third guide groove 640 between the two third ear plates 64. Further, each third lug plate 64 is fixedly connected with two third limiting plates 65 towards one side of another third lug plate 64, the two third limiting plates 65 are arranged along the horizontal direction, and a third sliding groove 650 for the guide rail 20 to penetrate along the vertical direction is formed between the two third limiting plates 65, so that when the frame body 30 or the guide rail 20 is lifted, the frame body 30 can only move relative to the guide rail 20 along the vertical direction.

It should be noted that the guide rail 20 may be H-shaped steel, and the flange 22 of the guide rail 20 facing the frame body 30 is inserted into the third sliding groove 650. Thus, the frame body 30 tightly holds the guide rail 20, and when the guide rail 20 and the frame body 30 are lifted respectively, the guide rail 20 of the frame body 30 can only move relatively in the vertical direction. The guide rail 20 may be, but is not limited to, an H-shaped steel, and in other embodiments, may be an i-shaped steel, and the like, and is not limited thereto.

Referring to fig. 16, in an embodiment of the present invention, the protection frame further includes a guide rail top wall device 70, and the guide rail top wall device 70 is disposed on the guide rail 20 for adjusting a distance between the guide rail 20 and the wall a. Thus, it is advantageous to ensure the perpendicularity of the guide rail 20.

In some embodiments, the track top wall device 70 includes a second ram 71 and a top wall cap 72. One end of the second push rod 71 is fixedly connected to the guide rail 20, and the opposite end is threadedly connected to the top wall cap 72, so that the top wall cap 72 can move in the longitudinal direction of the second push rod 71 when the top wall cap 72 is rotated. The top wall cap 72 is adapted to abut the wall a. In this way, the distance between the guide rail 20 and the wall a can be adjusted by rotating the top wall cap 72, thereby facilitating to secure the verticality of the guide rail 20. Preferably, one end of the second push rod 71 is fixedly connected to the bottom end of the guide rail 20. In this way, the force applied to the second jack 71 and the top wall cap 72 is reduced as much as possible, and adjustment by rotating the top wall cap 72 is facilitated.

In the embodiment, the rail top wall device 70 further includes a second mounting seat 73, the second mounting seat 73 is fixedly connected to the rail 20, and one end of the second rod 71 is fixedly connected to the second mounting seat 73. It should be noted that the fixed connection between the second push rod 71 and the second mounting seat 73 and the fixed connection between the second mounting seat 73 and the guide rail 20 can be achieved by welding, threaded fasteners (bolts and nuts), and the like. In other embodiments, the fixed connection may be achieved in other manners, and is not limited herein.

Referring to fig. 11, 12 and 13, in an embodiment of the present invention, the mechanism body 41 includes a third mounting seat 410, the chain wheel system and a driving element 411. The guide rail 20 is mounted with an upper sprocket 44a and a lower sprocket 44b along its extending direction. The third mounting seat 410 is fixedly connected to the frame body 30, and the chain wheel is mounted on the third mounting seat 410. The driving member 411 is mounted to the third mounting seat 410 for driving the chain wheel to rotate. The lift chain 42 is wound around the chain wheel train and between the upper and lower sprockets 44a and 44 b. In this way, the chain wheel system can be driven to rotate by the driving element 411, so that the guide rail or the frame body can be driven to perform a lifting motion by the lifting chain 42.

In one embodiment, the sprocket system includes a drive sprocket 416 and a driven sprocket 417. The driving sprocket 416 is mounted to the output shaft of the driving member 411, and the driven sprocket 417 is rotatably mounted to the third mounting seat 410. One end of the lifting chain 42 is fixedly connected to the third mounting seat 410, and the other end is wound around the upper chain wheel 44a, the driving chain wheel 416, the driven chain wheel 417 and the lower chain wheel 44b in sequence and is fixedly connected to the third mounting seat 410 to form an endless chain. In this way, the output shaft of the driving member 411 can rotate forward or backward, so that the chain wheel system lifts the rail or the frame body by the lifting chain 42.

In the embodiment, the mechanism body 41 further includes a second mounting plate 414, and the rotating shafts of the driving sprocket 416 and the driven sprocket 417 are mounted between the second mounting plate 414 and the third mounting seat 410. In this manner, it is advantageous to improve the mounting stability of the driving sprocket 416 and the driven sprocket 417.

In the embodiment, the mechanism body 41 further includes a speed reducer 413, and the speed reducer 413 is fixedly connected to the third mounting seat 410 and is drivingly connected between the driving element 411 and the driving sprocket 416. The reducer 413 is used for converting the rotation speed output by the driving element 411 into a required rotation speed and driving the driving sprocket 416 to rotate at the required rotation speed.

In one embodiment, the protective frame further comprises an upper mounting mechanism, which comprises an upper mounting seat 47a, an upper mounting rod 46a, an upper fitting member 48a and an upper mounting bracket 45 a.

An upper mounting seat 47a is fixedly attached to an upper portion of the rail 20, an upper sprocket 44a is rotatably attached to the upper mounting bracket 45a, and an upper mounting rod 46a has one end fixedly attached to the upper mounting bracket 45a and an opposite end penetrating the upper mounting seat 47a and being connected to an upper fitting 48a to fix the upper mounting rod 46a to the upper mounting seat 47 a. In this manner, the mounting of the upper sprocket 44a is achieved, and the mounting height of the upper sprocket 44a can be adjusted by adjusting the position of the upper fitting piece 48a relative to the upper mounting bar 46 a. Alternatively, the upper fitting 48a may be an adjustment nut. The upper mounting rod 46a is a threaded rod.

In one embodiment, the protective frame further comprises a lower mounting mechanism, which includes a lower mounting base 47b, a lower mounting rod 46b, a lower fitting member 48b, and a lower mounting bracket 45 b.

The lower mounting seat 47b is fixedly coupled to a lower portion of the rail 20, the lower sprocket 44b is rotatably coupled to the lower mounting bracket 45b, one end of the lower mounting rod 46b is fixedly coupled to the lower mounting bracket 45b, and the opposite end penetrates the lower mounting seat 47b and is coupled to the lower fitting member 48b to fix the lower mounting rod 46b to the lower mounting seat 47 b. In this manner, the mounting of the lower sprocket 44b is achieved, and the mounting height of the lower sprocket 44b can be adjusted by adjusting the position of the lower fitting piece 48b relative to the lower mounting bar 46 b. Alternatively, the lower fitting 48b may be an adjustment nut. The lower mounting rod 46b is a threaded rod.

Referring to fig. 1 and 5, in an embodiment of the present invention, the frame body 30 includes an inner side frame 31 and an outer side frame 32 opposite to the inner side frame 31. The inner side frame 31 includes a plurality of inner uprights each of which is fixed to a transversely disposed inner truss to integrate the inner frame. The outer frame 32 includes a plurality of outer columns, each of which is secured to a laterally disposed outer truss 320 to form the outer frame 32 as a unit.

In the embodiment, a walkway plate 33 and an X-shaped support 34 are further disposed between the inner frame 31 and the outer frame 32. The X-shaped support frame 34 is positioned below the walkway plate 33, and the mounting stability of the walkway plate 33 is ensured. Alternatively, the walkway plates 33 may include a plurality of walkway plates 33 arranged at intervals in the up-down direction. An X-shaped support frame 34 is arranged below each walkway plate.

In the embodiment, a plurality of net frames are fixedly mounted on the outer frame 32 to further reinforce the outer frame 32.

In order to avoid that the power mechanism needs to be turned over and moved up one layer after the frame body 30 is lifted one layer of nodes, the protection frame is designed such that the guide rail 20 can move upwards relative to the wall body a and the frame body 30, and can be driven by the power mechanism to lift upwards. However, since the guide rail 20 and the frame body 30 can be lifted up respectively, when the guide rail 20 is lifted up, the guide rail 20 is separated from the wall-attached support 10, and the guide rail 20 is prone to falling; when the rack body 30 is lifted, the rack body 30 is separated from the wall-attached support 10, and the falling accident of the rack body 30 is likely to occur. Therefore, it is necessary to provide a connection structure for preventing the guide rail 20 and the frame body 30 from falling down and improving safety.

FIG. 2 shows a schematic view of the fall arrest device 80 in one embodiment. Fig. 3 shows a schematic illustration of the counterpart 82 of the safety brake device 80 from fig. 2. FIG. 4 shows a schematic view of the counterpart 82 of the safety brake device 80 from FIG. 2 in a second position.

Referring to fig. 2, 3 and 4, in an embodiment of the present invention, a falling-preventing device 80 is further provided for connecting the first component and the second component. In this embodiment, the first member is the frame 30, and the second member is the guide rail 20. However, the first member is not limited to the frame body 30, and the second member is not limited to the guide rail 20. That is, the falling prevention device 80 is not limited to being used to connect the rail 20 and the housing 30, thereby preventing a falling accident of the rail 20 or the housing 30. In other embodiments, the fall arrest device 80 may be used to connect other components as well, and is not limited herein.

The anti-falling device 80 of the present invention will be described in detail below by taking the first component as the frame body 30 and the second component as the guide rail 20.

In this embodiment, the fall preventing device 80 includes a device body 81 and a fitting 82. The fitting cup 81 is adapted to be fixedly coupled to the frame 30. The apparatus body 81 has a fourth guide groove 8100 for slidably mounting the guide rail 20, and the guide groove penetrates in the vertical direction so that the guide rail 20 is slidable in the penetrating direction of the fourth guide groove 8100. The fitting 82 is rotatably connected to the apparatus body 81 about a second axis. Opposite ends of the fitting members 82 are adapted to be respectively fitted with the guide rails 20 during rotation of the fitting members 82 about the second axis to prevent the carrier body 30 from falling (i.e., to prevent the carrier body 30 from moving downward relative to the guide rails 20 when the carrier body is lifted) or to prevent the guide rails 20 from falling (i.e., to prevent the guide rails 20 from moving downward relative to the carrier body 30 when the guide rails are lifted). Alternatively, the second axis may be parallel to the horizontal plane.

When the anti-falling device is used for lifting the frame body 30, the frame body 30 is separated from the wall-attached support 10, and one end of the fitting piece 82 is matched with the guide rail 20, so that the frame body 30 is prevented from moving downwards relative to the guide rail 20, and the frame body 30 is prevented from falling. When the guide rail 20 is lifted, the guide rail 20 is separated from the wall attachment support 10, and the housing body 30 is coupled to the wall attachment support 10 and is engaged with the guide rail 20 through the opposite other end of the engaging member 82, thereby preventing the guide rail 20 from moving downward with respect to the housing body 30 and thus preventing the guide rail 20 from falling. Therefore, the anti-falling device can effectively prevent the falling accident of the frame body 30 or the guide rail 20, and the safety is improved.

In particular embodiments, the engagement member 82 includes a first position and a second position during rotation about the second axis.

When the engaging member 82 is in the first position, one end of the engaging member 82 may engage with the rail 20 to prevent the shelf 30 from moving downward relative to the rail 20, i.e., to prevent a drop accident of the shelf 30 during lifting of the shelf 30.

When the engaging member 82 is in the second position, the opposite end of the engaging member 82 is engaged with the rail 20 to prevent the rail 20 from moving downward relative to the housing 30, i.e., to prevent a falling accident of the rail 20 during lifting of the rail 20.

It will be appreciated that when it is desired to lift the shelf 30, the engaging member 82 is first rotated to the first position and then the shelf 30 is lifted, thereby effectively preventing the shelf 30 from falling. When it is desired to lift the rail 20, the fitting 82 is first rotated to the second position and then the rail 20 is lifted, thereby effectively preventing the rail 20 from falling.

In one embodiment, the engagement member 82 includes a first end 820 and a second end 822 opposite the first end 820.

When the fitting member 82 is in the first position, the first end 820 of the fitting member 82 may abut against the upwardly facing surface of the rail 20 to support the shelf 30 to prevent the shelf 30 from moving downward relative to the rail 20. The second end 822 of the fitting 82 abuts against the device body 81 to prevent the fitting 82 from rotating further, so that the fitting 82 is kept at the first position, the abutment of the first end 820 with the guide rail 20 is more stable, and the anti-falling effect of the anti-falling device 80 is improved.

When the mating member 82 is in the second position, the second end 822 of the mating member 82 may abut a downwardly facing surface of the rail 20 to support the rail 20 to prevent the rail 20 from moving downwardly relative to the housing 30. The first end 820 of the fitting 82 abuts against the device body 81 to prevent the fitting 82 from rotating continuously, so that the fitting 82 is kept at the second position, and the abutment of the second end 822 with the guide rail 20 is more stable, thereby improving the anti-falling effect of the anti-falling device 80. Alternatively, the mating member may be a crescent. Therefore, the matching piece is designed to be in a half-moon-shaped shape, so that the opposite ends of the matching piece are respectively abutted and matched with the guide rail 20, and the anti-falling effect is improved.

Further, the connection point of the fitting 82 with the apparatus body 81 is located between the first end 820 and the second end 822.

In the embodiment, the fall preventing device 80 further includes a second rotating shaft 83, the second rotating shaft 83 is rotatably connected to the device body 81, and the fitting 82 is fixedly connected to the second rotating shaft 83. In this manner, the fitting member 82 is rotatably attached to the apparatus body 81. Further, the fall preventing device 80 further includes an operating handle 84 and a second elastic member 85. The operating handle 84 is fixedly connected to the second rotating shaft 83, and two opposite ends of the second elastic member 85 are respectively connected to the operating handle 84 and the device body 81, so as to provide a pre-tightening force for driving the second rotating shaft 83 to rotate along a predetermined direction by the operating handle 84. As such, the provision of the second resilient member 85 facilitates the engagement member 82 to be maintained in either the first position or the second position. It will be appreciated that the axis of the second shaft 83 is the second axis.

It should be noted that the preset direction is not only a specific direction, but also varies according to the position of the engaging member 82. When the fitting 82 is in the first position, the predetermined direction is a direction in which the first end 820 of the fitting 82 rotates toward the guide rail 20 and the second end 822 rotates toward the apparatus body 81. When the fitting 82 is in the second position, the predetermined direction is a direction in which the first end 820 of the fitting 82 rotates toward the apparatus body 81 and the second end 822 rotates toward the guide rail 20.

In the embodiment shown in fig. 4, the engagement member 82 is in the second position, wherein the predetermined direction is counterclockwise about the second pivot axis 83.

In one embodiment, the device body 81 includes a first mounting plate 812 and a fall arrest box 810 fixedly attached to one side of the first mounting plate 812. The first mounting plate 812 is fixedly coupled to the frame 30. The fourth guide slot 8100 is formed on the side of the anti-falling box 810 away from the first mounting plate 812, and has an opening 8102 communicating with the inner cavity of the anti-falling box 810. The fitting element 82 is disposed in the inner cavity of the anti-falling box 810, and can extend into the fourth guide groove 8100 through the opening 8102 and be fitted with the guide rail 20.

In one embodiment, the second shaft 83 extends through the cage 810 and is rotatable relative to the cage 810. The operating handle 84 is arranged at one end of the second rotating shaft 83 penetrating through the anti-falling box 810.

It will be appreciated that in one embodiment, the rail 20 can be an H-beam, and one flange 22 of the rail 20 can be disposed through the fourth slot 8100 to allow the fall arrest member 16 to hug the rail 20. The guide rail 20 may be, but is not limited to, an H-shaped steel, and in other embodiments, may be an i-shaped steel, and the like, and is not limited thereto.

In some embodiments, the rail 20 has a plurality of falling off preventing portions 26 (see fig. 9 and 10), and the plurality of falling off preventing portions 26 are arranged at intervals in the longitudinal direction (i.e., up and down direction) of the rail 20. During rotation of the engaging member 82 about the second axis, opposite ends of the engaging member 82 are respectively engageable with the falling prevention portions 26 to prevent the shelf 30 from falling (i.e., the shelf 30 moves downward relative to the rail 20) or the rail 20 from falling (i.e., the rail 20 moves downward relative to the shelf 30). Alternatively, the fall arrest portion 26 may be a tab.

In particular embodiments, when the engagement member 82 is in the first position, the first end engages against the top of the fall arrest portion 26 of the rail 20 to support the housing 30. The second end abuts against the apparatus body 81 to prevent the fitting 82 from rotating. In this manner, the fitting 82 prevents the shelf 30 from falling.

When the engagement member 82 is in the second position, the second end engages against the bottom of the fall arrest portion 26 of the rail 20 to support the rail 20. The first end abuts against the apparatus body 81 to prevent the fitting 82 from rotating. In this manner, the fitting 82 prevents the rail 20 from falling.

In one embodiment, the stop portion 24 and the anti-falling portion 26 are located on opposite sides of the rail 20 to mate with the braking member 12 and the mating member 82, respectively.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A fall arrest device for connecting a first component and a second component, the fall arrest device comprising:

the device body is fixedly connected with the first component; the device body is provided with a guide groove for the sliding arrangement of the second component, and the guide groove is communicated along the vertical direction;

a fitting member rotatably connected to the apparatus body about an axis; and during the rotation of the matching piece around the axis, the opposite ends of the matching piece are respectively matched with the second component so as to prevent the first component or the second component from falling.

2. The fall arrest device according to claim 1 wherein the engagement member includes a first position and a second position during rotation about the axis;

when the mating member is in the first position, one end of the mating member mates with the second component to prevent the first component from falling;

when the mating member is in the second position, the opposite end of the mating member mates with the second component to prevent the second component from falling.

3. The fall arrest device according to claim 2, wherein the fitting includes a first end and a second end opposite the first end;

when the mating member is in the first position, the first end abuts an upwardly facing surface of the second member to support the first member; the second end is abutted against the device body so as to prevent the matching piece from rotating;

when the mating member is in the second position, the second end abuts a downwardly facing surface of the second member to support the second member; the first end abuts against the device body to prevent the fitting from rotating.

4. The fall arrest device according to claim 3, wherein the connection point of the fitting to the device body is between the first and second ends.

5. The fall arrest device according to claim 3 wherein the engagement member is a crescent.

6. The fall arrest device according to claim 3, further comprising a shaft rotatably connected to the device body, the engagement member being fixedly connected to the shaft.

7. The fall arrest device according to claim 6, further including a lever and a resilient member;

the operating handle is fixedly connected with the rotating shaft, and the elastic piece is connected with the operating handle and the device body so as to provide pre-tightening force for driving the rotating shaft to rotate around a preset direction by the operating handle.

8. The fall arrest device according to claim 1 wherein the axis is parallel to a horizontal plane.

9. The fall arrest device according to claim 1, wherein the device body includes a first mounting plate and a fall arrest cage fixedly attached to one side of the first mounting plate;

the first mounting plate is used for being fixedly connected to the first component, the guide groove is formed in one side, away from the first mounting plate, of the anti-falling box, and the guide groove is provided with an opening communicated with an inner cavity of the anti-falling box;

the fitting piece is positioned in the inner cavity of the anti-falling box, can penetrate into the guide groove through the opening and is matched with the second component.

10. A protective frame comprising a wall attachment support, a first member, a second member and the fall arrest device of any one of claims 1 to 9;

the wall-attached support is used for being fixedly connected to a wall body; the second member is a guide rail configured to be slidably coupled to the wall attachment bracket upwardly along the wall attachment bracket; the first part is a frame body which is slidably connected to the guide rail and is connectable to or separable from the wall-attached support.

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