CN215057070U

CN215057070U - Steel grating for safe operation platform ladder

Info

Publication number: CN215057070U
Application number: CN202121150012.4U
Authority: CN
Inventors: 洪谢芳; 朱小明; 马中生
Original assignee: Ningbo Lihongyuan Steel Grating Co ltd
Current assignee: Ningbo Lihongyuan Steel Grating Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-12-07
Anticipated expiration: 2031-05-26

Abstract

The utility model relates to a steel grating technical field, disclosing a steel grating for safe operation platform ladder, the key point of the technical proposal is that the steel grating comprises a rectangular bounding wall, two transverse plates are fixedly connected between one group of two opposite side inner walls of the rectangular bounding wall, a holding tank is arranged on the top surface of the junction of the transverse plates and each vertical plate, an anti-skid block is connected in the holding tank in a vertical sliding way, the surface of the steel grating generates concave-convex through the arranged anti-skid block, the roughness of the surface of the anti-skid block is increased through the arranged anti-skid lines, so as to play an anti-skid role, when a compression spring is in a natural state, the anti-skid block is exposed out of the holding tank, when an operator steps on the steel grating, the anti-skid block can be stepped on, the anti-skid block is forced to slide downwards, a limiting plate is driven to slide downwards between two limiting grooves, so that the compression spring is compressed and generates restoring force, the foot of the operator is forced upwards, further preventing the operator from slipping.

Description

Steel grating for safe operation platform ladder

Technical Field

The utility model relates to a steel grating technical field, more specifically the utility model relates to a steel grating for safe operation platform ladder that says so.

Background

The steel grating is a steel product which is formed by cross arrangement of flat steel and cross bars (twisted square steel, round steel, flat steel and the like) at certain intervals and is welded into a square lattice in the middle, and is mainly used for manufacturing ditch cover plates, steel structure platform plates, step plates of steel ladders and the like, generally made of carbon steel, hot galvanized on the outer surface, capable of playing a role in preventing oxidation, also made of stainless steel, and provided with performances of ventilation, lighting, heat dissipation, skid resistance, explosion resistance and the like;

however, in rainy weather, the smoothness of the surface of the steel grating plate is increased after the steel grating plate is wetted, and the steel grating plate is easy to slip when an operator steps on the ladder.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a safe steel grating for operation platform ladder for by the smooth slip when preventing that operating personnel from trampling the steel grating.

In order to achieve the above purpose, the utility model provides a following technical scheme: a steel grating for a safe operation platform ladder comprises rectangular surrounding plates, wherein two transverse plates are fixedly connected between one group of opposite two-side inner walls of the rectangular surrounding plates, a plurality of vertical plates are fixedly connected between the other group of opposite two-side inner walls of the rectangular surrounding plates, the transverse plates and the vertical plates are mutually perpendicular and integrally connected, a containing groove is formed in the top surface of the joint of the transverse plates and each vertical plate, an anti-skid block is vertically and slidably connected in the containing groove and comprises an anti-skid end, a plurality of S-shaped anti-skid lines are formed on the anti-skid end, limiting grooves are just formed in one group of opposite two-side inner walls of the containing groove, limiting plates are fixedly connected on the bottom surfaces of the anti-skid blocks, two ends of each limiting plate are respectively and vertically slidably connected in the two limiting grooves, and compression springs are fixedly connected between the limiting plates and the bottoms of the two limiting grooves, work as when compression spring is in natural state, the non slipping spur expose in when operating personnel trampled the steel grating, can step on the non slipping spur, make the surface of steel grating produce unsmoothly through the non slipping spur that sets up, increase the roughness on non slipping spur surface through the anti-skidding line that sets up, play skid-proof effect, the non slipping spur atress slides down simultaneously, drives the limiting plate and slides down between two spacing grooves for compression spring is compressed and produces the restoring force, makes operating personnel's foot receive ascending power, further prevents operating personnel and slips.

As a further improvement of the utility model, the two opposite side surfaces of the anti-skid ends are formed with first wedge surfaces, through grooves are arranged in the vertical plates, the through grooves are positioned between the two transverse plates, the two accommodating tanks on the same vertical plate are communicated with each other through the through grooves, the top wall of the through groove is connected with two cover plates in a sliding way, the side surfaces of the two cover plates, which are deviated from each other, are formed with second wedge surfaces matched with the first wedge surfaces, a moving part is arranged in the through grooves and is used for driving the two cover plates to be close to or away from each other so that the two cover plates respectively close or open the notches of the two accommodating tanks on the same vertical plate, the cover plates are driven by the moving part to close the accommodating tanks in sunny days so as to protect the anti-skid blocks from being worn, and the accommodating tanks are driven by the moving part to open the accommodating tanks in rainy days, so that the anti-skid block is exposed out of the accommodating groove and the operator is prevented from slipping.

As a further improvement of the present invention, the moving part comprises a gear, the gear is rotatably connected between two opposite inner walls of the through groove, a first rack and a second rack are slidably connected between two opposite inner walls of the through groove, the first rack and the second rack are parallel to each other, the gear is located between the first rack and the second rack, the first rack is located above the second rack, the first rack and the second rack are both engaged with the gear, one of the cover plates is fixedly connected with the first rack, one end of the second rack is fixedly connected with a connecting rod, one end of the connecting rod away from the first rack is fixedly connected with the other cover plate, the two cover plates are located on the same horizontal plane, and the first rack and the second rack are driven to move by the gear rotation, the first gear moves to drive one of the cover plates to move, the second gear moves to drive the other cover plate to move, the cover plate closes or opens the accommodating groove, the cover plate is driven to close the accommodating groove in sunny days to protect the anti-skid block from being abraded, and the cover plate is driven to open the accommodating groove in rainy days to expose the anti-skid block in the accommodating groove and prevent an operator from slipping.

As the utility model discloses a further improvement, be provided with rotation portion on the riser, rotation portion is used for driving gear revolve, rotation portion includes dwang, every adjacent two lead to the inslot pass through between the gear the coaxial fixed connection of dwang, the cover is equipped with the rotating sleeve on the dwang, the rotating sleeve with dwang fixed connection, operating personnel rotate the cover through rotating and drive the dwang rotation.

As a further improvement, the protective layer is arranged on the rotary sleeve, the material of the protective layer is silica gel, and the rotary sleeve is protected from being damaged by the protective layer.

The utility model has the advantages that: the utility model discloses an offer the holding tank at the top surface of diaphragm and each riser handing-over department, through sliding connection non slipping spur about in the holding tank, non slipping spur through setting up makes the surface production of steel grating unsmooth, anti-skidding line through setting up increases the roughness on non slipping spur surface, play skid-proof effect, when compression spring is in natural state, the non slipping spur exposes in the holding tank, when operating personnel steps on and steps on the steel grating, can step on the non slipping spur, the non slipping spur atress slides down, drive the limiting plate and slide down between two spacing grooves, make compression spring compressed and produce the restoring force, make operating personnel's foot receive ascending power, further prevent that operating personnel from slipping.

Drawings

FIG. 1 is a schematic view of the three-dimensional structure of the anti-slip block of the present invention exposed in the accommodating groove;

FIG. 2 is a schematic view of a three-dimensional cross-sectional structure of the anti-slip block of the present invention exposed in the accommodating groove;

fig. 3 is a schematic perspective view of the cover plate closing the accommodating groove of the present invention;

fig. 4 is a schematic view of the sectional structure of the cover plate when the accommodating groove is closed.

Reference numerals: 1. a rectangular coaming; 2. a transverse plate; 3. a vertical plate; 4. accommodating grooves; 5. anti-skid blocks; 6. a limiting groove; 7. a limiting plate; 8. a compression spring; 10. a cover plate; 11. a gear; 12. a first rack; 13. a second rack; 14. rotating the rod; 141. the sleeve is rotated.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1 to 4, the steel grating for the safe operating platform ladder of the embodiment comprises a rectangular surrounding plate 1, two transverse plates 2 are fixedly connected between two opposite inner side walls of one group of the rectangular surrounding plate 1, a plurality of vertical plates 3 are fixedly connected between the other group of the opposite inner side walls of the rectangular surrounding plate 1, the transverse plates 2 and the vertical plates 3 are mutually perpendicular and integrally connected, a containing groove 4 is arranged on the top surface of the connecting part of the transverse plate 2 and each vertical plate 3, an anti-skid block 5 is vertically and slidably connected in the containing groove 4, the surface of the steel grating is concave-convex through the arranged antiskid block, so as to play the antiskid role, the antiskid block 5 comprises an antiskid end, the two opposite side surfaces of the antiskid end are provided with first wedge surfaces, a plurality of S-shaped antiskid lines are formed on the antiskid end, the roughness on the surface of the anti-skid block 5 is increased through the arranged anti-skid lines, so that the operator is prevented from slipping.

One of them a set of relative both sides inner wall of holding tank 4 is just to having seted up spacing groove 6, fixedly connected with limiting plate 7 on 5 bottom surfaces of non slipping spur, sliding connection is in two spacing grooves 6 about the both ends of limiting plate 7 respectively, equal fixedly connected with compression spring 8 between limiting plate 7 and two spacing groove 6 bottoms, when compression spring 8 is in natural state, non slipping spur 5 exposes in holding tank 4, operating personnel steps on when non slipping spur 5 top, non slipping spur 5 atress slides down, drive limiting plate 7 and slide down between two spacing grooves 6, make compression spring 8 compressed and produce the restoring force, and then make operating personnel's foot receive ascending power, prevent that operating personnel from slipping, when operating personnel leaves non slipping spur 5, under compression spring 8's the effect of restoring force, non slipping spur 5 restores to the normal position.

Open the logical groove in riser 3, it is located between two diaphragm 2 to lead to the groove, two holding tanks 4 on same riser 3 link up each other through leading to the groove, sliding connection has two apron 10 on the logical groove roof, the side that two apron 10 deviate from each other is formed with the second scarf with first scarf matched with, when apron 10 needs to close holding tank 4, apron 10 removes to one side of non slipping spur 5, first scarf offsets with the second scarf, apron 10 continues to remove, through the mutual extrusion fit of first scarf and second scarf, make non slipping spur 5 remove downwards, make apron 10 close holding tank 4, in sunny days, it closes holding tank 4 to drive apron 10, do not receive wearing and tearing with protection non slipping spur 5.

The through groove is internally provided with a moving part which is used for driving the two cover plates 10 to mutually approach or keep away from each other so that the two cover plates 10 respectively close or open the notches of the two accommodating grooves 4 on the same vertical plate 3. In sunny days, the cover plate 10 is driven by the moving portion to close the accommodating groove 4 so as to protect the anti-skidding blocks 5 from being abraded, and in rainy days, the cover plate 10 is driven by the moving portion to open the accommodating groove 4 so as to expose the anti-skidding blocks 5 in the accommodating groove 4 and prevent operators from slipping. The movable part comprises a gear 11, the gear 11 is rotatably connected between two opposite inner walls of the through groove, a first rack 12 and a second rack 13 are slidably connected between the two opposite inner walls of the through groove, the first rack 12 and the second rack 13 are parallel to each other, the gear 11 is located between the first rack 12 and the second rack 13, the first rack 12 is located above the second rack 13, the first rack 12 and the second rack 13 are meshed with each other with the gear 11, one cover plate 10 is fixedly connected with the first rack 12, one end of the second rack 13 is fixedly connected with a connecting rod, one end of the connecting rod, far away from the first rack 12, is fixedly connected with another cover plate 10, and the two cover plates 10 are located on the same horizontal plane. The first rack 12 and the second rack 13 are driven to move through the rotation of the gear 11, one of the cover plates 10 is driven to move through the movement of the first gear 11, the other cover plate 10 is driven to move through the movement of the second gear 11, the accommodating groove 4 is closed or opened by the cover plate 10, the accommodating groove 4 is closed by the cover plate 10 in sunny days, the anti-skid block 5 is protected from being abraded, the accommodating groove 4 is opened by the cover plate 10 in rainy days, the anti-skid block 5 is exposed out of the accommodating groove 4, and the operator is prevented from slipping.

Be provided with rotation portion on riser 3, rotation portion is used for driving gear 11 and rotates, and rotation portion includes dwang 14, and through the coaxial fixed connection of dwang, the cover is equipped with rotation cover 141 on dwang 14, rotates cover 141 and dwang 14 fixed connection between the gear 11 of every two adjacent logical inslots. Drive dwang 14 through rotating the cover 141 and rotate, rotate through dwang 14 and drive gear 11 and rotate, rotate through gear 11, drive first rack 12 and second rack 13 and remove, it removes to drive one of them apron 10 and removes to remove through first gear 11, it removes to drive another apron 10 and removes to remove through second gear 11, make apron 10 close holding tank 4 or open, when fine, it closes holding tank 4 to drive apron 10, in order to protect non slipping spur 5 not to receive wearing and tearing, during rainy day, it opens holding tank 4 to drive apron 10, make non slipping spur 5 expose in holding tank 4, prevent that operating personnel from slipping. The rotating sleeve 141 is provided with a protective layer made of silica gel, the silica gel is fixedly connected to the outer side of the rotating sleeve 141, and the rotating sleeve 141 is protected from being damaged by the arranged silica gel layer.

The working principle is as follows: during rainy day, non slipping spur 5 exposes in holding tank 4, non slipping spur 5 through the setting makes the surface of steel grating produce unsmoothly, non slipping spur through the setting increases the roughness on non slipping spur 5 surface, play skid-proof effect, operating personnel steps on when non slipping spur 5 top, non slipping spur 5 atress lapse, drive limiting plate 7 lapse between two spacing grooves 6, make compression spring 8 compressed and produce the restoring force, and then make operating personnel's foot receive ascending power, further prevent that operating personnel from slipping, when operating personnel leaves non slipping spur 5, under compression spring 8's the effect of restoring force, non slipping spur 5 replies to the normal position.

In sunny days, the rotating rod 14 is driven to rotate through the rotating sleeve 141, the gear 11 is driven to rotate through the rotating rod 14, the gear 11 rotates to drive the first rack 12 and the second rack 13 to move, one of the cover plates 10 is driven to move through the movement of the first gear 11, the other cover plate 10 is driven to move through the movement of the second gear 11, the first wedge surface and the second wedge surface are in mutual extrusion fit, the anti-skid blocks 5 move downwards, the cover plates 10 close the accommodating grooves 4, and the anti-skid blocks 5 are protected from being abraded.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a safe steel grating for operation platform ladder, includes rectangle bounding wall (1), its characterized in that: two transverse plates (2) are fixedly connected between one set of opposite two-side inner walls of the rectangular enclosing plate (1), a plurality of vertical plates (3) are fixedly connected between the other set of opposite two-side inner walls of the rectangular enclosing plate (1), the transverse plates (2) and the vertical plates (3) are mutually perpendicular, connected and integrally formed, a containing groove (4) is formed in the top surface of the joint of the transverse plates (2) and each vertical plate (3), an anti-skid block (5) is vertically and slidably connected in the containing groove (4), the anti-skid block (5) comprises an anti-skid end, a plurality of S-shaped anti-skid lines are formed on the anti-skid end, a limiting groove (6) is just right formed in one set of opposite two-side inner walls of the containing groove (4), a limiting plate (7) is fixedly connected on the bottom surface of the anti-skid block (5), and two ends of the limiting plate (7) are respectively and vertically and slidably connected in the two limiting grooves (6), limiting plate (7) and two equal fixedly connected with compression spring (8) between limiting groove (6) bottom, work as when compression spring (8) are in natural state, non slipping spur (5) expose in holding tank (4).

2. A safety operating platform ladder steel grating as claimed in claim 1, wherein: the both sides face that the antiskid end is relative is formed with first scarf, logical groove has been seted up in riser (3), it is located two to lead to the groove between diaphragm (2), it is same two on riser (3) holding tank (4) pass through logical groove link up each other, sliding connection has two apron (10), two on the logical groove roof side that deviates from each other apron (10) be formed with first scarf matched with second scarf, it is provided with the removal portion to lead to the inslot, the removal portion is used for driving two apron (10) are close to each other or keep away from, so that two apron (10) will be same respectively two on riser (3 the notch of holding tank (4) is closed or is opened.

3. A safety operating platform ladder steel grating as claimed in claim 2, wherein: the movable part comprises a gear (11), the gear (11) is rotatably connected between two opposite inner walls of the through groove, a first rack (12) and a second rack (13) are connected between the two opposite inner walls of the through groove in a sliding manner, the first rack (12) is parallel to the second rack (13), the gear (11) is positioned between the first rack (12) and the second rack (13), the first rack (12) is positioned above the second rack (13), the first rack (12) and the second rack (13) are meshed with the gear (11), one cover plate (10) is fixedly connected with the first rack (12), one end of the second rack (13) is fixedly connected with a connecting rod, one end of the connecting rod, far away from the first rack (12), is fixedly connected with the other cover plate (10), the two cover plates (10) are positioned on the same horizontal plane.

4. A safety operating platform ladder steel grating as claimed in claim 3, wherein: be provided with rotation portion on riser (3), rotation portion is used for driving gear (11) rotate, rotation portion includes dwang (14), every adjacent two lead to the inslot pass through between gear (11) dwang (14) the coaxial fixed connection, the cover is equipped with and rotates cover (141) on dwang (14), rotate cover (141) with dwang (14) fixed connection.

5. A safety operating platform ladder steel grating as claimed in claim 4, wherein: the rotating sleeve (141) is provided with a protective layer, and the protective layer is made of silica gel.