CN209942719U - Two-in-one device of step box and mixing station with same - Google Patents

Abstract

The utility model provides a two-in-one device for a step box body, which comprises a plurality of step boxes, wherein the step boxes are detachably assembled and overlapped together along the vertical direction in sequence; each step ladder box comprises a box body and telescopic steps, wherein in the adjacent two steps ladder boxes, the top surface of the lower layer box body is provided with a top step opening, and the bottom surface of the upper layer box body is provided with a bottom step opening; a top cover plate is arranged at the top stair opening; an inlet and an outlet are arranged on the side surface of the box body, and side doors are arranged at the inlet and the outlet; one end of the telescopic step ladder is rotatably connected with the inner bottom wall of the box body, and when the telescopic step ladder is in a stretching state, the free tail end of the telescopic step ladder can be abutted against the top stair opening of the box body; the telescopic ladder can shield the bottom ladder opening when in a contraction state. This two unification devices of step ladder box can regard as step ladder and storage box to use, is convenient for transport, and the part is lost or is warp when avoiding transporting. The utility model also provides a mixing station with this step ladder box two-in-one device.

Description

Two-in-one device of step box and mixing station with same

Technical Field

The utility model relates to a step, concretely relates to two unification devices of step box and have stirring station of two unification devices of this step box.

Background

The asphalt mixing plant is the key equipment for asphalt pavement construction and also the largest single equipment in pavement construction machinery. The asphalt mixing plant consists of a plurality of devices, and has the advantages of complex structure, large floor area and high height. Taking a 4000 type asphalt mixing plant as an example, the height of a main building is as high as 30 meters, and the main building is formed by vertically stacking a plurality of floor units. In order to facilitate the assembly and disassembly of the mixing plant and the inspection, maintenance and repair in the production and operation process, workers need to freely walk to the top end of the main building from the bottom of the main building, and therefore an existing asphalt mixing plant manufacturer designs a multi-stage simple pedestrian ladder, namely a ladder stand, for the main building. The existing ladder stand is a simple assembled pedestrian ladder, namely is formed by assembling a step ladder, a butt strap, handrail rails at two sides, a connecting beam, screws and nuts and the like, and belongs to an open structure. The asphalt mixing plant has to be repeatedly disassembled and assembled for each transition or transportation, and has the following disadvantages: 1. the asphalt mixing plant has the most complex structure in all types of mixing and stirring equipment, spare parts are numerous after disassembly, parts are easy to be mixed or lost during disassembly and assembly, and part of spare parts are easy to deform by extrusion during transportation, so that the next installation is influenced. 2. The pin-connected panel people's ladder among the prior art is before the attachment strap is fixed, and personnel can't stand on the people's ladder, consequently, the workman need sit hanging flower basket unsettled operation during the dismouting, and the potential safety hazard is big, and the dismouting is inconvenient, wastes time and energy, and the labour cost is high. 3. The open type pedestrian ladder is adopted, potential safety hazards exist during walking, particularly psychological stress is greater for people with high phobia, and the open type pedestrian ladder is easily influenced by natural environment factors such as strong wind, strong rain, strong sun and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the above-mentioned technical problem that provides at least, provide a two unification devices of step box, it is convenient for transport, and can use as the storage box when transporting to do benefit to the part that the storage was pulled down, the part is lost or is out of shape when avoiding transporting.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

a two-in-one device for a step box body comprises a plurality of step boxes, wherein the step boxes are sequentially detachably assembled and overlapped together along the vertical direction; each step ladder box comprises a box body and telescopic steps, in the adjacent two steps ladder boxes, the top surface of the lower layer box body is provided with a top stair opening in a penetrating way, the bottom surface of the upper layer box body is provided with a bottom stair opening in a penetrating way, and the top stair opening and the bottom stair opening are mutually communicated; a top cover plate for opening and closing the top stair opening is arranged at the top stair opening; an inlet and an outlet are formed in the side surface of each box body in a penetrating manner, and side doors for opening and closing the inlet and the outlet are arranged at the inlet and the outlet; one end of the telescopic step ladder is rotatably connected with the inner bottom wall of the corresponding box body, and when the telescopic step ladder is in a stretching state, the free tail end of the telescopic step ladder can be abutted against the top stair hole of the corresponding box body or penetrate through the top stair hole of the corresponding box body and is abutted against the bottom stair hole of the adjacent upper-layer box body; when the telescopic step ladder is in a contraction state, the telescopic step ladder can be contained in the corresponding box body and is laid on the inner bottom wall of the corresponding box body to shield the bottom step opening.

Further, at least one side of the telescopic ladder is detachably provided with a handrail.

Further, be fixed with the sleeve pipe on the flexible step ladder, the bottom of handrail is connected with the inserted bar, the inserted bar peg graft in the sleeve pipe, thereby will handrail with flexible step ladder detachably links together.

Furthermore, one side of the top cover plate is rotatably connected with the corresponding box body through a hinge, and one side of the side door is rotatably connected with the corresponding box body through a hinge.

Furthermore, two adjacent step boxes are detachably connected together through a connecting mechanism, the connecting mechanism comprises a first mounting plate, a second mounting plate, a first fixing lug, a second fixing lug and a connecting piece, the first mounting plate is fixed on the top surface of the lower box body, the second mounting plate is fixed on the inner bottom wall of the upper box body, and the first fixing lug is fixed on the first mounting plate and sequentially penetrates through the bottom of the upper box body and the second mounting plate to extend into the upper box body; the second fixing lug is fixed on the second mounting plate and is accommodated in the upper-layer box body; the connecting piece is located in the upper box body, and is worn to establish in proper order first fixed ear reaches the fixed ear of second, in order with first fixed ear reaches the fixed ear detachably of second links together.

Further, the connecting piece includes pin and pin checkpost, the pin include the pin pole and form in the round pin fin of pin pole one end, the pin pole wears to establish in proper order first fixed ear and the fixed ear of second, link up on the pin pole and seted up the jack, the pin checkpost is worn to establish the jack, the pin checkpost is located first fixed ear dorsad second fixed ear one side, the round pin fin is located the fixed ear dorsad of second one side of first fixed ear.

Further, the telescopic step ladder is a hydraulic telescopic ladder or an electric telescopic ladder.

Further, the top cover plate is detachably connected with the box body.

The utility model discloses still further provide a mixing plant who has two unification devices of above-mentioned step box.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

1. the two-in-one device for the step ladder box body is detachably overlapped together along the vertical direction through the step ladder boxes, so that the two-in-one device can be used as a ladder stand. The telescopic step ladder is located in the box body, so that the telescopic step ladder is located in a relatively closed environment, and compared with an open type ladder stand in the prior art, the telescopic step ladder is safer to walk, can relieve psychological pressure especially for people with panic disorder, and is not easily influenced by natural environment factors. Because a plurality of step ladder boxes are connected through the detachable mode, consequently, convenient to detach transports. When a plurality of step casees were in the separation state, accessible top apron, side door and the flexible step sealed the top stair mouth on the box, imported and exported and bottom stair mouth for the step case becomes a confined storage tank, does benefit to the part that the storage was pulled down, and the loss or the deformation of part when avoiding transporting.

2. Above-mentioned two unification devices of step box through a plurality of step boxes along vertical direction detachably stack together, can provide the supporting platform of operation for the staff through the step box, consequently, the workman need not to sit hanging flower basket unsettled operation during the dismantlement, and is safer, and can reduce the cost of dismantling, transporting.

3. The two-in-one device for the box body of the step ladder has the advantages that the adjacent two layers of step ladder boxes are connected through the connecting mechanism. The first fixed ear of coupling mechanism passes through first mounting panel and lower floor's box fixed connection to wear to establish the bottom and the second mounting panel of upper box in order to stretch into the upper box in proper order, can prevent that the relative lower floor's of upper box from taking place horizontal motion, make both connect more reliably. The connecting piece adopts the pin and the pin clip, and the pin clip are both positioned in the box body, so that the pin and the pin clip can be directly pulled out during disassembly without the assistance of tools such as a spanner, and the disassembly and the assembly are more convenient; and because the pin and the pin clip are both positioned in the box body, the assembly and disassembly are safer. The first fixing lug positioned on the outer side of the box body can also be used as a lifting lug, the lifting lug is not required to be additionally arranged during lifting, and the lifting operation during the mounting of the step box is facilitated.

4. The two-in-one device for the step ladder and the box body adopts the telescopic step ladder which is rotatably connected with the box body, the position of the telescopic step ladder can be limited, and the box body can be made to have larger storage holes when the telescopic step ladder is rotated to the inner bottom wall of the corresponding box body, so that the utilization rate of the space of the box body is improved; simultaneously, utilize flexible step can also realize closing the sheltering from of bottom stair mouth, convenient to use, and need not to establish in addition that the apron shelters from bottom stair mouth, can further reduce the cost of above-mentioned two unification devices of step box.

Drawings

Fig. 1 is a schematic perspective view of a mixing station according to a preferred embodiment of the present invention.

Fig. 2 is a schematic perspective view of the two-in-one device of the step ladder box in the mixing station shown in fig. 1 with one side plate removed.

FIG. 3 is a perspective view of the step box of the mixing station of FIG. 1 with the top cover and side doors closed.

Fig. 4 is a perspective view of the stepladder box shown in fig. 3 with one side panel removed.

Fig. 5 is a schematic view of the step ladder box of fig. 4 in another use state.

Fig. 6 is an enlarged view of fig. 1 at a.

Fig. 7 is an enlarged view of fig. 2 at B.

Fig. 8 is an enlarged view of fig. 2 at C.

Fig. 9 is a perspective view of a connection mechanism according to a preferred embodiment of the present invention.

Fig. 10 is a perspective view of the coupling mechanism of fig. 9 from another perspective.

FIG. 11 is a cross-sectional view of the top panel of the case of FIG. 3 taken along line I-I.

Fig. 12 is a perspective view of two adjacent ladder sections of the extension ladder according to the preferred embodiment of the present invention, which is in a contracted state.

Fig. 13 is a perspective view of the left side connection block of fig. 12 in a left side view.

Description of the main elements

100-stirring station, 2-main building, 21-storey unit, 300-step box two-in-one device, 4-step box, 42-box, 421-top step opening, 4211-limit flange, 422-bottom step opening, 423-inlet/outlet, 424-side door, 425-top plate, 426-bottom plate, 427-side plate, 428-top cover plate, 4261,4621-mounting hole, 43-hinge, 44-telescopic step, 440-step section, 441-sleeve, 4412-pin hole, 445-bolt, 443-transverse plate, 4432-connecting shaft, 4434-first positioning screw hole, 4436-second positioning screw hole, 446-handrail, 4461-inserting rod, 447-positioning screw, 448-connecting block, 449-sleeve pipe, 46-connecting mechanism, 461-first mounting plate, 462-second mounting plate, 463-first fixing lug, 4631-first plug hole, 464-second fixing lug, 4641-second plug hole, 465-connecting piece, 4651-pin, 4653-pin rod, 4654-pin head, 4656-plug hole, 4657-pin clamp, 47-buckle, 471-hook, 473-hook ring, 6-bolt prefabricated part, 62-first connecting plate, 63-second connecting plate and 64-bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

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 a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components 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.

Referring to fig. 1, a mixing plant 100 according to a preferred embodiment of the present invention includes a main building 2, wherein the main building 2 is formed by vertically stacking a plurality of floor units 21. The structure of the main building 2 is prior art and will not be described in detail herein for brevity. One side of the main building 2 is provided with a two-in-one device 300 of a step box, which is convenient for people to pass among each floor unit 21 in the main building 2. The two-in-one device 300 of the step box body comprises a plurality of step boxes 4, wherein the step boxes 4 are sequentially detachably assembled and stacked together along the vertical direction, and the step boxes 4 correspond to the floor units 21 one to one and are detachably connected with the corresponding floor units 21.

Referring also to fig. 2-5, each step box 4 includes a box 42 and a telescoping step 44. The top surface of box 42 link up and has seted up top stair mouth 421, and the bottom surface of box 42 links up and has seted up bottom stair mouth 422, and top stair mouth 421 and bottom stair mouth 422 are located same plummet line and communicate each other to two-layer step case 4 about communicating through top stair mouth 421 and bottom stair mouth 422. An inlet and outlet 423 is formed through the side surface of the box body 42, and the inlet and outlet 423 communicates the box body 42 with the corresponding floor unit 21; a side door 424 for opening and closing the port 423 is provided at the port 423. In the present embodiment, the step box 4 has a substantially cubic box shape and is formed by connecting a top plate 425, a bottom plate 426, and four side plates 427 to each other. The top landing hole 421 is opened in the top plate 425 of the box body 42, the bottom landing hole 422 is opened in the bottom plate 426 of the box body 42, the entrance 423 is opened in the side plate 427 of the box body 42, and the entrance 423 communicates with the floor unit 21 corresponding to the box body 42, so that people can pass between the box body 42 and the floor unit 21. The top landing openings 421, the bottom landing openings 422, and the access openings 423 are preferably rectangular holes having a width that allows at least one person to pass through. A top cover plate 428 for opening and closing the top landing opening 421 is disposed at the top landing opening 421, and in this embodiment, one side of the top cover plate 428 is rotatably connected to the top plate 425 of the corresponding box body 42 through a hinge 43, and is capable of rotating relative to the box body 42 under a force to open or close the top landing opening 421. One side of the side door 424 is pivotally connected to a side plate 427 of the corresponding box 42 via a hinge (not shown), and is forced to pivot relative to the box 42 to open or close the access opening 423. In this embodiment, the inlet and outlet 423 of the step boxes 4 are located on the same side of the step box 4, and two inlet and outlet 423 are separately opened on the side plate 427 of each step box 4. It can be understood that, in actual production, the opening positions and the number of the entrances and exits 423 may be selected according to the direction of the main building 2, the flow rate of people, and the like. In the present embodiment, the side door 424 is an outward opening door; the top cover 428 is of the outwardly opening type.

In this embodiment, the one end of extension ladder 44 is connected with the interior diapire rotation that corresponds box 42, and when extension ladder 44 was in tensile state, can make the free end of extension ladder 44 support and lean on in the top stair mouth 421 department (fig. 5) that corresponds box 42, support promptly and lean on the lateral wall that encloses into top stair mouth 421, and at this moment, extension ladder 44 connects adjacent two-layer step case 4 to make personnel can pass between upper and lower box 42, and this step case two-in-one device 300 can regard as the cat ladder to use. When the telescopic ladder 44 is in the contracted state (fig. 4), the telescopic ladder 44 can be accommodated in the corresponding box body 42, and is laid on the inner bottom wall of the corresponding box body 42 to shield the bottom ladder opening 422, and the step box 4 can be in the closed state by matching with the use of the top cover plate 428 and the side door 424, and at the moment, the two-in-one device 300 for the step box body can be used as a storage box.

Referring to fig. 12 and 13, in the present embodiment, the telescopic step ladder 44 includes a plurality of ladder sections 440 sleeved in sequence, each ladder section 440 includes two parallel sleeves 441, one end of each sleeve 441 is slidably inserted into each sleeve 441 of an adjacent ladder section 440, and the other ends of the two sleeves 441 are connected together by a transverse plate 443 disposed transversely. The cross plate 443 is used for a person to step on for climbing. Each sleeve 441 has a plurality of pin holes 4412 spaced apart along its length, and each pin 445 is inserted through a corresponding pin hole 4412 of a sleeve 441 of two adjacent ladder sections 440 in order to prevent relative movement of the two adjacent ladder sections 440, thereby positioning the telescopic ladder 44 at a desired height. In the present embodiment, the transverse plate 443 is rotatably connected to the two corresponding sleeves 441, specifically: opposite ends of the transverse plate 443 are respectively and fixedly connected with a connecting shaft 4432, and the two connecting shafts 4432 are respectively connected with the two sleeves 441 through a connecting block 448, wherein the connecting block 448 is fixed on the corresponding sleeve 441 and is positioned on one side of the corresponding sleeve 441 facing the other sleeve 441. Each connecting shaft 4432 is rotatably inserted into a corresponding connecting block 448. The outer peripheral wall of each connecting shaft 4432 is provided with a first positioning screw hole 4434 and a second positioning screw hole 4436 at intervals. The first positioning screw hole 4434 and the second positioning screw hole 4436 both extend along the radial direction of the connecting shaft 4432 and have a preset included angle, and the size of the included angle of the preset included angle is set by the inclined angle of the telescopic ladder 44 lapped at the top ladder opening 421 relative to the horizontal plane. Each connecting block 448 is provided with a positioning screw 447 in a penetrating manner, and the positioning screw 447 can be in threaded connection with the first positioning screw hole 4434 or the second positioning screw hole 4436: when the positioning screw 447 is screwed with the first positioning screw hole 4434, the transverse plate 443 can be positioned to be horizontal when the telescopic step 44 is in the retracted state (fig. 4), and at this time, the transverse plates 443 on the plurality of step sections can contact with each other, so as to further improve the sealing performance of the box body 42; when the positioning screw 447 is screwed with the second positioning screw hole 4436, the horizontal plate 443 can be positioned to be horizontal when the telescopic step ladder 44 is in the stretching state (fig. 5), so that the stepping area is increased, and the person can conveniently climb. It will be appreciated that in other embodiments, the telescopic stairway 44 may also be a prior art telescopic stairway, for example, a telescopic stairway of chinese utility model CN 206273998U.

Still detachably has installed handrail 446 on at least one side of extension ladder 44, through setting up handrail 446, security when can further improve personnel climbing extension ladder 44. Specifically, in the present embodiment, a sleeve 449 is fixed to the transverse plate 443, and an insertion rod 4461 is connected to the bottom of the handrail 446; when the telescopic step 44 is in the extended position and the cross plate 443 is positioned horizontally, the free end of the plunger 4461 is inserted into the sleeve 449 of the cross plate 443, thereby removably attaching the balustrade 446 to the telescopic step 44. The handrail 446 and the telescopic ladder 44 are connected in an inserting manner, so that the assembly and disassembly are more convenient. Preferably, when the length of the telescopic step ladder 44 is long, the handrail 446 is of a sectional structure, for example, when the length of the telescopic step ladder 44 is long and the handrail 446 with a total length of 3 meters needs to be provided, if the integrated handrail 446 with a length of 3 meters is adopted, the handrail 446 is too long and heavy, which is inconvenient to carry and assemble, and if 3 sectional handrails 446 with a length of 1 meter are adopted to be used together, the length of the single handrail 446 is reduced, the weight of the handrail is small, and the carrying and assembling are convenient.

Referring again to fig. 2, in the present embodiment, two adjacent step boxes 4 are detachably connected together by a connecting mechanism 46. Preferably, two adjacent step boxes 4 are connected by four connecting mechanisms 46, the four connecting mechanisms 46 being located at four corners of the box body 42, respectively. Referring to fig. 6 to 10, each connecting mechanism 46 includes a first mounting plate 461, a second mounting plate 462, a first fixing lug 463, a second fixing lug 464, and a connecting member 465. The first mounting plate 461 is substantially in the shape of a triangular plate and is fixed to the top surface of the top plate 425 of the lower casing 42. The second mounting plate 462 has a substantially triangular plate shape and is fixed to the inner bottom wall of the bottom plate 126 of the upper tank 42. First fixed ear 463 is fixed in on first mounting panel 461 to wear to establish bottom plate 426 and the second mounting panel 462 of upper box 42 in order to stretch into upper box 42 in proper order, specifically be: referring to fig. 4, the bottom plate 426 and the second mounting plate 462 of the upper box 42 are correspondingly provided with mounting holes 4261,4621, and the first fixing lug 463 sequentially passes through the mounting hole 4261 of the upper box 42 and the mounting hole 4621 of the second mounting plate 462 to extend into the upper box 42. A first inserting hole 4631 is formed through the first fixing tab 463, and the first inserting hole 4631 is located in the upper case 42. The second fixing lug 464 is fixed on the second mounting plate 462 and is accommodated in the upper box body 42; the second fixing lug 464 has a second inserting hole 4641. The connecting member 465 is disposed in the upper case 42 and sequentially passes through the first inserting hole 4631 of the first fixing lug 463 and the second inserting hole 4641 of the second fixing lug 464, so as to detachably connect the first fixing lug 463 and the second fixing lug 464 together.

In this embodiment, the connector 465 includes a pin 4651 and a pin catch 4657. The pin 4651 includes a pin shaft 4653 and a pin head 4654 formed at one end of the pin shaft 4653. The pin rod 4653 sequentially passes through the first inserting hole 4631 and the second inserting hole 4641, the pin rod 4653 is provided with an inserting hole 4656 in a penetrating way, and the pin clamp 4657 is provided with the inserting hole 4656 in a penetrating way. The pin catch 4657 is located on a side of the first fixing lug 463 facing away from the second fixing lug 464, and the pin head 4654 is located on a side of the second fixing lug 464 facing away from the first fixing lug 463. Through the mutual cooperation of the pin clip 4657 and the pin head 4654, the pin 4651 can be prevented from being disengaged from the first fixing lug 463 and the second fixing lug 464, so that the connection between the step ladder box 4 is reliable.

Referring to fig. 1 and 6 together, in the present embodiment, each step box 4 and the corresponding floor unit 21 are detachably connected together by the bolt prefabricated members 6. The bolt preforms 6 are located on the side of the casing 42 facing the floor units 21 and are located near the top of the stairway box 4. The bolt preform 6 includes a first connecting plate 62, a second connecting plate 63, and a bolt 64. The first connecting plate 62 is fixedly connected to the outer wall of the side plate 427 of the box 42, the second connecting plate 63 is fixedly connected to the corresponding floor unit 21, and the bolts 64 are inserted through the first connecting plate 62 and the second connecting plate 63, so that the step box 4 and the corresponding floor unit 21 are detachably connected together. Can make step case 4 more reliable with being connected of floor unit 21 through bolt prefab 6, bolt prefab 6 is located box 42 towards one side of floor unit 21 to be close to the top setting of step case 4, make operating personnel stand and can assemble and dismantle the work at the top of corresponding step case 4, the process is more convenient.

When the two-in-one device 300 for the step box body is assembled, the step boxes 4 are sequentially stacked together according to the direction from bottom to top. During assembly, the step ladder box 4 is hoisted to a preset position by a hoisting device such as a crane, and in the process, the first fixing lug 463 at the top of the step ladder box 4 can be used as a lifting lug connected with the hoisting device. The telescopic step ladder 44 in the box body 42 is rotated and stretched, and after the telescopic step ladder 44 is adjusted to a proper length, the free end of the telescopic step ladder 44 is lapped at the top step ladder opening 421 of the box body 42. The top cover 428 at the top landing opening 421 is opened by climbing the telescopic step ladder 44. The worker goes from the telescopic step 44 through the top landing 421, gets on the top surface of the box body 42, and screws the bolts 64 of the bolt preforms 6, thereby coupling the step box 4 with the corresponding floor unit 21. Then, the telescopic step ladder 44 of the other step ladder box 4 is assembled by the above method, the step ladder box 4 is hoisted to the top of the step ladder box 4 by a crane, and the first fixing lug 463 on the top surface of the lower step ladder box 4 sequentially passes through the mounting hole 4261 of the upper box 42 and the mounting hole 4621 of the second mounting plate 462 to extend into the upper box 42; the staff gets into upper step ladder case 4 from the flexible step ladder 44 of lower floor step ladder case 4, pegs graft on first fixed ear 463 and second fixed ear 464 with pin 4651 again, locks with pin checkpost 4657 at last, at this moment, links together two-layer adjacent step ladder case 4. The above steps are repeated to connect the plurality of step boxes 4 in sequence and to install the balustrade 446. In use, the side doors 424 on each of the tanks 42 are opened so that the tanks 42 communicate with the corresponding floor units 21. It will be appreciated that top cover plate 428 may also be removed from cabinet 42 as needed to facilitate personnel access during use.

When the step box 4 is detached, the plurality of step boxes 4 are sequentially detached from top to bottom. First, the side door 424 is closed, and the telescopic step 44 is passed through the top step opening 421 and is stepped on the top surface of the box body 42, and then the bolts 64 on the bolt preforms 6 are removed, i.e., the step box 4 to be disassembled is separated from the main building 2; next, the pin clamp 4657 is pulled out from the box body 42 to be detached, and the pin 4651 is removed from the first fixing lug 463 and the second fixing lug 464, so that the ladder box 4 to be detached can be separated from the lower ladder box 4. Finally, the walk-behind box 4 to be dismantled is lifted off from the lower-level box 42 by a crane or the like. And repeating the steps to sequentially separate and disassemble the plurality of step boxes 4 from the main building 2. When the step ladder box 4 is transported, the handrail 446 is removed, the telescopic step ladder 44 is used for reaching the top of the box body 42, and the top cover plate 428 is closed; the step ladder 44 within the container 42 is retracted and the step ladder 44 is supported on the top cover 428 of the lower container 42, in which case the step ladder box 4 is a closed storage box.

The transfer of the mixing plant 100 requires the removal of the main building 2, which is prior art and will not be described in detail herein for the sake of brevity. During the transportation, the parts detached from the main building 2 can be stored in the step box 4 of the corresponding floor. For small parts such as the bolts 64, the small parts are usually wrapped by wrappings such as boxes and bags and then placed in the step box 4, the size of the wrappings is larger than that of each gap in the box body 42, the small parts are prevented from accidentally falling from the gaps in the box body 42, and the subsequent parts can be conveniently searched.

In the above embodiment, the free end of the telescopic step ladder 44 is lapped on the top step opening 421 of the corresponding box body 42 to reach one box and one ladder, so that the assembly and disassembly of the step ladders 4 are more independent, convenient and safe. It will be appreciated that in other embodiments, the free end of the telescopic step ladder 44 may be threaded through the top landing opening 421 of the corresponding cage 42 and abut the bottom landing opening 422 of the adjacent upper cage 42. Adopt this kind of overlap joint mode, when the adjacent two-layer step case 4 of equipment, need notice the length of adjusting flexible step 44 to flexible step 44 influences the installation and the dismantlement of upper step case 4.

In the above embodiment, the telescopic step ladder 44 is a manually adjustable telescopic ladder structure. It is understood that in other embodiments, the telescopic stairway 44 may be a hydraulic telescopic ladder, an electric telescopic ladder, etc., as known in the art.

It is to be understood that the manner of mounting the side door 424 is not limited to the above-described embodiment. For example, in other embodiments, the side door 424 may be detachably connected to the side plate 427 of the box 42 by a snap, a bolt, or the like, and in use, the side door 424 is detached by the snap to allow the step box 4 to communicate with the main building 2 of the mixing station 100, or the side door 424 may be slidably connected to the side plate 427 of the box 42, and in use, the side door 424 is slid to open the entrance 423. Likewise, the manner of installing the top cover 428 is not limited to the above-described embodiment as long as it can open and close the corresponding top stairway opening 421.

It can be understood that when using step case 4 to transport as the storage tank, if the part that can not soak is deposited in box 42, can set up sealing members such as waterproof cloth in gaps such as box 42's door crack to improve step case 4's waterproof nature, wet by the rainwater of infiltration in the part that prevents step case 4, influence follow-up use. The waterproof cloth can be fixed to the case 42 by bonding or the like, and when the waterproof cloth needs to be reassembled, the waterproof cloth can be cut off by using a cutter.

In the present embodiment, the side door 424 is an outward opening door; the top cover 428 is of the outwardly opening type to prevent the top cover 428 from interfering with the passage of persons on the telescopic step ladder 44 when the top cover 428 is opened or closed, which can be facilitated when the top cover 428 is opened or closed. It is understood that in other embodiments, side door 424 may be configured as an inside-opening door, and top cover 428 may be configured as an inside-opening door.

It will be appreciated that the two-in-one step ladder housing 300 may also include other components, such as lights for providing illumination to the step ladder housing 4, and lighting, ventilation, etc. for providing windows in the housing 42 of the step ladder housing 4. The structure and installation of the illumination lamp and the window are prior art and will not be described in detail herein for the sake of brevity.

Referring to FIG. 11, in this embodiment, top cover 428 may be connected to box 42 at a side away from hinges 43 by a latch 47. At this time, a limit flange 4211 is further convexly arranged on the side wall enclosing the top stair opening 421, and a space for overlapping the telescopic step ladder 44 is formed between the limit flange 421 and the bottom of the top stair opening 421. When the top cover plate 428 is in the closed position, the top cover plate 428 is received in the top landing opening 421 and supported on the position-limiting flange 4211, and the position-limiting flange 4211 can not only support the top cover plate 428, but also limit the extension ladder 44, so that the installation of the extension ladder 44 is more reliable. The structure of the latch 47 belongs to the prior art, and includes a hook 471 and a hook ring 473. One end of the hook 471 is pivotally connected to the side of the top cover plate 428 facing the cavity of the container body 42, and the hook ring 473 is fixed to the position-limiting flange 4211. The hook 471 is engaged with the hook ring 473 to detachably connect the top cover plate 428 with the container body 42. When the step ladder box 4 is in the separated transfer state, the top cover 428 and the box body 42 can be connected together by using the buckle 47, so that the connection between the top cover 428 and the box body 42 is more stable, and the top cover 428 is prevented from being opened accidentally. Similarly, the side of side door 424 remote from hinge 43 may be connected to body 42 by a snap or latch.

In the present embodiment, each box 42 is provided with a top landing 421 and a bottom landing 422. It is understood that the top opening 421 of the step box 4 at the highest level can be omitted, and in this case, the bolt prefabricated member 6 is disposed near the bottom of the box body 42, a through hole is opened on the side plate 427 of the box body 42 facing the main building 2, and the bolt prefabricated member 6 includes a bolt 64, and the bolt 64 passes through the through hole of the box body 42 and is screwed with the main building 2. The bottom landing 422 of the lowermost step box 4 may be omitted. This embodiment requires attention to the installation position and order of the two step boxes 4 at the time of assembly.

It is to be understood that the step ladder box two-in-one apparatus 300 is not limited to use in the mixing station 100, and may be used in a factory building or a fabricated building, for example.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims (9)

1. A two-in-one device for a step box body is characterized by comprising a plurality of step boxes, wherein the step boxes are sequentially detachably assembled and overlapped together along the vertical direction; each step ladder box comprises a box body and telescopic steps, in the adjacent two steps ladder boxes, the top surface of the lower layer box body is provided with a top stair opening in a penetrating way, the bottom surface of the upper layer box body is provided with a bottom stair opening in a penetrating way, and the top stair opening and the bottom stair opening are mutually communicated; a top cover plate for opening and closing the top stair opening is arranged at the top stair opening; an inlet and an outlet are formed in the side surface of each box body in a penetrating manner, and side doors for opening and closing the inlet and the outlet are arranged at the inlet and the outlet; one end of the telescopic step ladder is rotatably connected with the inner bottom wall of the corresponding box body, and when the telescopic step ladder is in a stretching state, the free tail end of the telescopic step ladder can be abutted against the top stair hole of the corresponding box body or penetrate through the top stair hole of the corresponding box body and is abutted against the bottom stair hole of the adjacent upper-layer box body; when the telescopic step ladder is in a contraction state, the telescopic step ladder can be contained in the corresponding box body and is laid on the inner bottom wall of the corresponding box body to shield the bottom step opening.

2. The two-in-one device for the box body of the escalator as claimed in claim 1, wherein: at least one side of the telescopic ladder is detachably provided with a handrail.

3. The two-in-one device for the box body of the escalator as claimed in claim 2, wherein: the telescopic step ladder is characterized in that a sleeve is fixed on the telescopic step ladder, the bottom of the handrail is connected with an inserting rod, and the inserting rod is inserted in the sleeve, so that the handrail and the telescopic step ladder are detachably connected together.

4. The two-in-one device for the box body of the escalator as claimed in claim 1, wherein: one side of the top cover plate is rotatably connected with the corresponding box body through a hinge, and one side of the side door is rotatably connected with the corresponding box body through a hinge.

5. The two-in-one device for the box body of the escalator as claimed in claim 1, wherein: two adjacent step boxes are detachably connected together through a connecting mechanism, the connecting mechanism comprises a first mounting plate, a second mounting plate, a first fixing lug, a second fixing lug and a connecting piece, the first mounting plate is fixed on the top surface of the lower box body, the second mounting plate is fixed on the inner bottom wall of the upper box body, and the first fixing lug is fixed on the first mounting plate and sequentially penetrates through the bottom of the upper box body and the second mounting plate to extend into the upper box body; the second fixing lug is fixed on the second mounting plate and is accommodated in the upper-layer box body; the connecting piece is located in the upper box body, and is worn to establish in proper order first fixed ear reaches the fixed ear of second, in order with first fixed ear reaches the fixed ear detachably of second links together.

6. The two-in-one device for the box body of the escalator as claimed in claim 5, wherein: the connecting piece includes pin and pin checkpost, the pin include the pin pole and be formed at the round pin fin of pin pole one end, the pin pole wears to establish in proper order the fixed ear of first fixed ear and second, link up on the pin pole and seted up the jack, the pin checkpost is worn to establish the jack, the pin checkpost is located first fixed ear dorsad fixed ear one side of second, the round pin fin is located the fixed ear dorsad of second one side of first fixed ear.

7. The two-in-one device for the box body of the escalator as claimed in claim 1, wherein: the telescopic step ladder is a hydraulic telescopic ladder or an electric telescopic ladder.

8. The two-in-one device for the box body of the escalator as claimed in claim 1, wherein: the top cover plate is detachably connected with the box body.

9. A mixing station having a two-in-one apparatus for a stairway box as claimed in any one of claims 1 to 8.

Images