Portable construction waste vertical conveying device

Abstract

The present application relates to the technical field of conveying structure, in particular to a portable construction waste vertical conveying device, comprising a base, a plurality of lifting units arranged on the base and capable of vertical telescopic movement, and a carrying platform arranged on the lifting units and used for carrying construction waste; through the winding and vertical lifting functions of the lifting chain, the vertical conveying of the carrying platform and the construction waste thereon can be realized, while the volume of the overall device and the required working space can be reduced, the operation convenience is improved, the portable transfer function of the device can be realized by combining the base and the hooks thereon with the external carrier, the overall flexibility is improved, and the needs of frequent change of work site can be met; through the side platform on each chain link, the bending direction of the lifting chain can be limited, and through the synchronous movement of the plurality of lifting chains and the mutual cooperation of the bending directions of the lifting chains, the stable lifting function of the carrying platform can be realized.

Description

Technical Field

[0001] This invention relates to the technical field of conveying structures, and in particular to a portable vertical conveying device for construction waste. Background Technology

[0002] During construction, a large amount of construction waste is generated, such as broken bricks, cement blocks, mortar, and plasterboard. This waste usually needs to be transferred from a high position to the ground. Currently, the commonly used transportation methods mostly use simple hoisting devices with hooks and cables, or use motor-driven screws, gear racks, and other transmission mechanisms to achieve vertical lifting of the carrying platform. However, the structure of the above-mentioned existing devices is fixed. Whether it is a gantry type or a screw lifting type, a support base must be erected in advance on the high floor or exterior wall, or an integral gantry frame must be erected on the ground. This results in a large overall size of the device, occupying limited construction space. At the same time, once such devices are installed, they are difficult to move, and their flexibility is poor, making them unable to meet the needs of frequent changes in construction site locations. Summary of the Invention

[0003] This invention provides a portable vertical conveying device for construction waste, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A portable vertical conveying device for construction waste includes a base, several lifting units disposed on the base and capable of vertical telescopic movement, and a loading platform disposed on the lifting units for carrying construction waste. Several hooks for quick connection with external vehicles are provided on the side wall of the base. The lifting unit includes a storage box, a roller, and a lifting chain composed of several chain links. The roller is rotatably disposed in the middle of the storage box. The storage box is provided with a vertical channel with the opening of the vertical channel facing upward. One end of the lifting chain is located inside the storage box and is wound around the roller. The other end of the lifting chain extends out through the vertical channel, and this end of the lifting chain is connected to the platform through a connecting plate. The chain link has a side platform on its side wall. When two adjacent chain links rotate relative to each other and are collinear, the two side platforms abut against each other. When two adjacent chain links rotate relative to each other to the other side, the two side platforms separate from each other.

[0005] In some embodiments of the present invention, the lifting units are divided into multiple groups, each group containing two lifting units, and the side platforms on the two lifting units in each group are correspondingly arranged. The two vertical channels on the two lifting units in each group form an output channel, and the two lifting chains are transported through the output channel.

[0006] In some embodiments of the present invention, a plurality of slots are provided on the side wall of one of the lifting units in each group, the plurality of slots are arranged along the length direction of the lifting chain, the length direction of the slots is along the width direction of the lifting chain, and the cross-section of the slots is arc-shaped. A plurality of locking ridges are provided on the side wall of another lifting unit to cooperate with each of the slots.

[0007] In some embodiments of the present invention, the link is provided with a baffle and a mounting groove. The baffle and the side platform are respectively located on both sides of the link. A sliding arm is slidably arranged in the mounting groove. A baffle is provided on the sliding arm. The baffle on one link cooperates with the baffle on the adjacent link so that when two adjacent links are collinear, the baffle on the baffle blocks the baffle on the baffle.

[0008] In some embodiments of the present invention, a lever is provided on the sliding arm, and an inclined groove is provided on the inner wall of the vertical channel. The inclined groove is used to guide the lever to move along the width direction of the lifting chain.

[0009] In some embodiments of the present invention, a magnetic conductor is provided on the side wall of the sliding arm, and a permanent magnet that cooperates with the magnetic conductor is provided in the mounting groove, wherein the length direction of the permanent magnet is along the moving direction of the sliding arm.

[0010] In some embodiments of the present invention, the link is provided with a groove, which is used in conjunction with a baffle on an adjacent link.

[0011] In some embodiments of the present invention, a slot is provided on the side wall of the side platform, and when the lifting chain is wound onto the winding roller, the lever is located in the slot corresponding to the chain link.

[0012] In some embodiments of the present invention, the base is composed of a fixed seat and a movable seat that can move relative to each other, the hook is disposed on the fixed seat, and a plurality of curved arm structures are disposed between the fixed seat and the movable seat. The curved arm structure is composed of a connecting arm one and a connecting arm two that are rotatably connected to each other. The connecting arm one is rotatably connected to the fixed seat, and the connecting arm two is rotatably connected to the movable seat. Multiple lifting units are correspondingly arranged on a fixed seat and a movable seat. The lifting unit on the fixed seat is fixedly connected to the platform, and the lifting unit on the movable seat is slidably connected to the platform via a guide rail.

[0013] In some embodiments of the present invention, the platform consists of a fixed platform and a movable platform. The fixed platform and the movable platform are rotatably connected by several hinges. The fixed platform is fixedly connected to a lifting unit on the fixed seat. The guide rail consists of two segmented rails, which are respectively disposed on the fixed platform and the movable platform. When the fixed platform and the movable platform are coplanar, the two segmented rails in the guide rail are collinear.

[0014] The beneficial effects of this invention are as follows: By utilizing the winding and vertical lifting functions of the lifting chain, the platform and the construction waste on it can be transported vertically. This also helps to reduce the overall size of the device and the required working space, improving operational convenience. Combined with the base and its hooks, which can be directly combined with external carriers, the device can be portable and transferred, improving overall flexibility and meeting the needs of frequent changes in work sites. The side platforms on each chain link can limit the bending direction of the lifting chain. By combining the synchronous movement of several lifting chains and the mutual coordination of the bending directions of the lifting chains, a stable lifting function for the platform can be achieved. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 Schematic diagram of the lifting unit and the platform; Figure 3 yes Figure 2 A structural diagram from another perspective; Figure 4 yes Figure 3 Schematic diagram of the lifting unit; Figure 5 yes Figure 4 A schematic diagram of the structure of a medium link; Figure 6 yes Figure 5 A structural diagram from another perspective; Figure 7 yes Figure 4 A structural diagram of the medium-sized storage box; Figure 8 yes Figure 5 A magnified view of the structure at point A in the middle; Figure 9 yes Figure 1 Schematic diagram of the central base structure.

[0017] Figure label: 100. Base; 101. Hook; 102. Fixed base; 103. Movable base; 104. Connecting arm one; 105. Connecting arm two; 200. Lifting unit; 201. Storage box; 202. Roller; 203. Vertical channel; 204. Chain link; 205. Connecting plate; 206. Side platform; 207. Slot; 208. Baffle one; 209. Mounting slot; 210. Sliding arm; 211. Baffle two; 212. Lever; 213. Angled lever slot; 214. Magnetic conductor; 215. Permanent magnet; 216. Groove; 217. Notch; 300. Stage; 301. Fixed stage; 302. Movable stage; 303. Hinge; 304. Guide rail; 400. Telescopic prism; 500, Locking lug; 501, Rotating post; 502, Stop post. Detailed Implementation

[0018] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0019] like Figures 1 to 5 As shown, a portable vertical conveying device for construction waste according to the present invention includes a base 100, a plurality of lifting units 200 disposed on the base 100 and capable of vertical telescopic movement, and a loading platform 300 disposed on the lifting units 200 and used to carry construction waste. A plurality of hooks 101 for quick connection with external vehicles are provided on the side wall of the base 100. The lifting unit 200 includes a storage box 201, a roller 202, and a lifting chain composed of several chain links 204. The roller 202 is rotatably disposed in the middle of the storage box 201. A vertical channel 203 is provided on the storage box 201, and the opening of the vertical channel 203 faces upward. One end of the lifting chain is located inside the storage box 201 and is wound around the roller 202. The other end of the lifting chain extends out through the vertical channel 203, and this end of the lifting chain is connected to the platform 300 through a connecting plate 205. Among them, a side platform 206 is provided on the side wall of the link 204. When two adjacent links 204 rotate relative to each other and are collinear, the corresponding side platforms 206 abut against each other. When two adjacent links 204 rotate relative to each other towards the other side, the corresponding side platforms 206 separate from each other.

[0020] Specifically, the platform 300 can be installed on top of several lifting units 200. The lifting and lowering movement of the lifting units 200 can push the platform 300 to move vertically, thereby facilitating the vertical transfer of construction waste on the platform 300. Several lifting units 200 are all installed on the base 100. The hooks 101 on the base 100 can be easily connected to external vehicles, thereby enabling the rapid transfer of the base 100 and its structure via external vehicles.

[0021] The roller 202 in the lifting unit 200 passes through the center of the storage box 201, and the roller 202 inside the storage box 201 is used to wind up the lifting chain. Thus, by rotating the roller 202, the lifting chain can be driven to extend through the vertical channel 203 or retracted into the storage box 201. The side platforms 206 on the sidewalls of the chain links 204 can be used to limit the rotation angle between adjacent chain links 204. That is, as the angle between two chain links 204 gradually increases, the side platforms 206 on the sidewalls of the two chain links 204 approach each other; when the two chain links 204 are collinear, the side platforms 206 abut against each other, thereby limiting the rotation angle of the two chain links 204. Conversely, as the angle between two chain links 204 gradually decreases, the distance between the side platforms 206 gradually decreases. As the chain links 204 gradually increase in size, it can be seen that when the chain links 204 are wound onto the roller 202, the side platform 206 is located on the side of the chain links 204 away from the roller 202. This allows adjacent chain links 204 to form a certain angle towards the roller 202, facilitating the winding of the lifting chain. The vertical channel 203 can guide and support the lifting chain. Combined with the fixed connection between the top of the lifting chain and the platform 300 via the connecting plate 205, the lifting chain between the vertical channel 203 and the platform 300 can be limited, keeping it in a vertical state. Since several lifting units 200 are simultaneously connected to the platform 300, the synchronous movement of the several lifting units 200 can limit the platform 300 and the lifting chain itself, preventing the lifting chain from bending.

[0022] In some embodiments, since the side platform 206 is located outside the link 204, the lifting chain can only bend in one direction. To improve the support effect of the lifting chain on the platform 300, some of the lifting units 200 are allowed to bend in one direction, while others are allowed to bend in another direction. The two directions can be on the same vertical plane or on two vertical planes that are at an angle to each other. Both can limit the lifting chain itself and stably lift the platform 300.

[0023] In use, the carrier moves the base 100 to the designated position, and the motor drives the rollers 202 in each lifting unit 200 to rotate. The rollers 202 release the lifting chains wound in the storage box 201 outward. The lifting chains are conveyed vertically upward through the vertical channel 203. Several lifting chains simultaneously push the platform 300 upward to the designated position. Workers transfer construction waste onto the platform 300, and then drive the rollers 202 to rotate in the opposite direction, so that the lifting chains enter the storage box 201 through the vertical channel 203 and are wound onto the rollers 202. The height of the platform 300 drops to a fixed position, thereby realizing the vertical conveying of construction waste.

[0024] By utilizing the winding and vertical lifting functions of the lifting chain, the vertical transport of the platform 300 and the construction waste on it can be achieved. This also facilitates the reduction of the overall size of the device and the required working space, improving operational convenience. Combined with the base 100 and its hooks 101, which can be directly combined with external carriers, the device can be portable and transferable, improving overall flexibility and meeting the needs of frequent changes in work sites. The side platform 206 on each link 204 can limit the bending direction of the lifting chain. By combining the synchronous movement of several lifting chains and the mutual coordination of the bending directions of the lifting chains, a stable lifting function for the platform 300 can be achieved.

[0025] In some embodiments of the present invention, such as Figure 4 As shown, several lifting units 200 are divided into multiple groups, each group containing two lifting units 200, and the side platforms 206 on the two lifting units 200 in each group are correspondingly arranged. The two vertical channels 203 on the two lifting units 200 in each group form an output channel, and the two lifting chains are transported through the output channel.

[0026] Two lifting units 200 are set as a group, and several lifting units 200 can be divided into multiple groups. The bending direction of the lifting chain on the two lifting units 200 in each group is set opposite to each other, that is, the side platforms 206 on the two lifting units 200 are positioned opposite each other. This allows the two lifting units 200 to play a mutually restrictive role, preventing the two lifting chains from bending synchronously in any direction and improving the stability of the movement of the platform 300. It should be noted that since the two lifting units 200 are set opposite to each other, the side platforms 206 on the two lifting chains will be located between the two lifting chains, and the side platforms 206 of the vertical part of the two lifting chains will fit together.

[0027] The vertical channels 203 on the two storage boxes 201 are combined together to form a vertical output channel, through which both lifting chains are transported.

[0028] In some embodiments of the present invention, a plurality of slots 207 are provided on the side wall of the side platform 206 of one lifting unit 200 in each group. The plurality of slots 207 are arranged along the length direction of the lifting chain, the length direction of the slots 207 is along the width direction of the lifting chain, and the cross section of the slots 207 is arc-shaped. A plurality of locking ridges that cooperate with each slot 207 are provided on the side wall of the side platform 206 of another lifting unit 200.

[0029] like Figures 4 to 6 As shown, when the lifting chains in the two storage boxes 201 enter the output channel and fit together, the corresponding locking edges on the two lifting chains will engage in the locking slots 207, thereby connecting the corresponding links 204 on the two lifting chains and allowing the two lifting chains on the outside of the output channel to be combined into a whole, improving its robustness. Since the cross-sectional shape of the locking slots 207 is arc-shaped, the shape of the locking edges is also arc-shaped. This shape is mainly to ensure that the movement trajectory of the links 204 is arc-shaped when they enter the vertical channel 203 from the storage box 201. Using this movement trajectory, the arc-shaped locking edges can be engaged in the arc-shaped locking slots 207. At the same time, the shape characteristics of the locking slots 207 and the locking edges can also lock the two lifting chains on the outside of the output channel in the horizontal direction, making them unable to separate.

[0030] In some embodiments of the present invention, a baffle 208 and a mounting groove 209 are provided on the link 204. The baffle 208 and the side platform 206 are respectively located on both sides of the link 204. A sliding arm 210 is slidably arranged in the mounting groove 209. A baffle 211 is provided on the sliding arm 210. The baffle 211 on one link 204 cooperates with the baffle 208 on the adjacent link 204 so that when two adjacent links 204 are collinear, the baffle 211 blocks the baffle 208.

[0031] like Figure 5 and Figure 8As shown, taking a vertical link 204 as an example, baffle 208 and mounting groove 209 are located on the lower side and middle of link 204, respectively. Baffle 211 in mounting groove 209 cooperates with the adjacent link 204 on the upper side of link 204. That is, when link 204 is located inside storage box 201, baffle 208 and baffle 211 are misaligned along the rotation axis of link 204. At this time, baffle 211 will not block baffle 208, and adjacent links 204 can rotate relative to each other. When the lifting chain moves outside the storage box 201, the side platform 206 restricts one side of the chain link 204, preventing the lifting chain from bending towards that side. At the same time, it moves the sliding arm 210 in the mounting groove 209, causing the sliding arm 210 to move the second baffle 211 onto the movement path of the first baffle 208. The first baffle 208 and the second baffle 211 are in contact with each other. At this time, the obstruction of the first baffle 208 by the second baffle 211 will prevent the lifting chain from bending towards the other side, thereby achieving bidirectional restriction of the lifting chain and keeping the lifting chain in a vertical columnar structure.

[0032] Of course, in addition to the above-mentioned arrangement, baffle 208 can also be set on the upper side of link 204, and baffle 211 in mounting groove 209 can cooperate with baffle 208 on the lower adjacent link 204. As long as baffle 208 and baffle 211 can be used to limit the bending direction of the lifting chain, they are all within the scope of protection of this case.

[0033] In some embodiments of the present invention, a lever 212 is provided on the sliding arm 210, and an inclined groove 213 is provided on the inner wall of the vertical channel 203. The inclined groove 213 is used to guide the lever 212 to move along the width direction of the lifting chain.

[0034] like Figure 7 and Figure 8 As shown, the end of the lever 212 extends to the outside of the mounting groove 209. When the chain link 204 passes through the vertical channel 203 and outputs outward, the end of the lever 212 will slide into the inclined groove 213 from one end. The inclined groove 213 guides the lever 212, causing it to move along the rotation axis of the chain link 204. The lever 212 then moves the sliding arm 210 and the baffle 211, thereby directly limiting the output lifting chain. The lifting chain input into the storage box 201 in the opposite direction will be unlocked by the lever 212 and the inclined groove 213, allowing the lifting chain to bend towards the roller 202.

[0035] In some embodiments of the present invention, a magnetic conductor 214 is provided on the side wall of the slide arm 210, and a permanent magnet 215 that cooperates with the magnetic conductor 214 is provided in the mounting groove 209. The length direction of the permanent magnet 215 is along the moving direction of the slide arm 210.

[0036] like Figure 8As shown, both poles of the permanent magnet 215 can attract and fix the magnetic conductor 214. Utilizing this characteristic, when the second baffle 211 moves and blocks the first baffle 208, the magnetic conductor 214 moves to one pole of the permanent magnet 215. At this time, the magnetic conductor 214 and the pole of the permanent magnet 215 attract and fix each other. When the second baffle 211 and the first baffle 208 separate, the magnetic conductor 214 moves from one pole of the permanent magnet 215 to the other pole. At this time, the pole of the permanent magnet 215 will also attract and fix the magnetic conductor 214. Thus, this structure is used to locate and limit the two positions of the second baffle 211, preventing it from moving arbitrarily.

[0037] In some embodiments of the present invention, a groove 216 is provided on the link 204, and the groove 216 is used in conjunction with a baffle 208 on the adjacent link 204.

[0038] like Figure 5 and Figure 8 As shown, when the two links 204 rotate relative to each other, the movement trajectory of the baffle 208 on one link 204 is likely to intersect with that of the other link 204, causing the baffle 208 to interfere with the relative movement of the two links 204. To solve this problem, a groove 216 can be made on the link 204 so that the baffle 208 can move within the groove 216, thereby ensuring that the two links 204 can rotate relative to each other.

[0039] In some embodiments of the present invention, a slot 217 is provided on the side wall of the side platform 206. When the lifting chain is wound on the winding roller 202, the lever 212 is located in the slot 217 on the corresponding chain link 204.

[0040] like Figure 6 As shown, the lever 212 on the inner and outer ring links 204 of the storage box 201 faces the side platform 206 on the inner ring link 204. Since the end of the lever 212 is located outside the mounting groove 209, the end of the lever 212 can be stored by opening a notch 217 on the side platform 206. This makes it easier to shorten the winding radius of the lifting chain and avoid the end of the lever 212 from scratching the side platform 206.

[0041] In some embodiments of the present invention, such as Figure 9 As shown, the base 100 consists of a fixed seat 102 and a movable seat 103 that can move relative to each other. The hook 101 is set on the fixed seat 102. Several curved arm structures are provided between the fixed seat 102 and the movable seat 103. The curved arm structure consists of a connecting arm 104 and a connecting arm 105 that are rotatably connected to each other. The connecting arm 104 is rotatably connected to the fixed seat 102, and the connecting arm 105 is rotatably connected to the movable seat 103. Multiple lifting units 200 are respectively installed on the fixed seat 102 and the movable seat 103. The lifting unit 200 on the fixed seat 102 is fixedly connected to the platform 300, and the lifting unit 200 on the movable seat 103 is slidably connected to the platform 300 through the guide rail 304.

[0042] Several lifting units 200 can be divided into two rows, which are respectively set on the fixed seat 102 and the movable seat 103. The articulated arm structure composed of connecting arm one 104 and connecting arm two 105 can support and connect the fixed seat 102 and the movable seat 103. When connecting arm one 104 and connecting arm two 105 rotate relative to each other and the included angle between them decreases, the movable seat 103 moves closer to the fixed seat 102. At this time, the two rows of lifting units 200 on the fixed seat 102 and the movable seat 103 move closer to each other. The lifting units 200 on the movable seat 103 can slide on the bottom surface of the platform 300 using the guide rail 304, thereby reducing the volume of the base 100 and facilitating the transfer of the device. The operation of the articulated arm structure can be driven by a motor or manually. Specifically, the connecting plate 205 on the lifting unit 200 can slide on the guide rail 304.

[0043] In some embodiments of the present invention, the platform 300 is composed of a fixed platform 301 and a movable platform 302. The fixed platform 301 and the movable platform 302 are rotatably connected by a plurality of hinges 303. The fixed platform 301 is fixedly connected to the lifting unit 200 on the fixed base 102. The guide rail 304 is composed of two sections of rail. The two sections of rail are respectively disposed on the fixed platform 301 and the movable platform 302. When the fixed platform 301 and the movable platform 302 are coplanar, the two sections of rail in the guide rail 304 are collinear.

[0044] like Figure 2 and Figure 3 As shown, when the movable seat 103 approaches the fixed seat 102, the lifting unit 200 on the movable seat 103 slides from the section rail on the movable platform 302 to the section rail on the fixed platform 301. At this time, the lifting unit 200 on the movable seat 103 is separated from the movable platform 302. The lifting units 200 on the fixed platform 102 and the movable seat 103 are both located at the bottom of the fixed platform 301. Rotating the movable platform 302 changes it from a horizontal state to a vertical state, which makes it easy to fold up the platform 300 and make it easy to use the base 100 with the platform 300.

[0045] In some embodiments, such as Figure 3 As shown, the roller 202 on the fixed seat 102 and the corresponding roller 202 on the movable seat 103 can be connected by a telescopic prism 400, so that the lifting unit 200 on the fixed seat 102 and the lifting unit 200 on the movable seat 103 can move synchronously, and the telescopic prism 400 will extend and retract when the fixed seat 102 and the movable seat 103 move relative to each other.

[0046] To prevent the movable seat 103 from moving freely when the fixed seat 102 and the movable seat 103 abut against each other, several locking structures can be provided between the fixed seat 102 and the movable seat 103. The locking structures include a locking lug 500 on the fixed seat 102 and a rotating post 501 rotatably mounted on the movable seat 103. The rotating post 501 is connected to the movable seat 103 by a spring. A stop post 502 is provided at the end of the rotating post 501 along its radial direction. When the movable seat 103 approaches the fixed seat 102, the rotating post 501 is rotated, causing the stop post 502 to align with the opening of the locking lug 500, and the stop post 502 passes through the locking lug 500. The opening is 0, and part of the rotating column 501 extends into the locking lug 500. When the rotating column 501 is released, the spring on the rotating column 501 will drive the rotating column 501 and the stop column 502 to rotate and reset. At this time, the stop column 502 is locked on the end face of the locking lug 500 away from the movable seat 103, thereby realizing the locking work between the fixed seat 102 and the movable seat 103. Of course, in addition to the above locking structure, bolts, buckles and other structures can also be used to realize the locking function. Furthermore, corresponding locking structures can also be set on the lifting unit 200 and the platform 300 to realize the locking of the folding of the platform 300 and the lifting of the lifting unit 200.

[0047] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A portable vertical conveying device for construction waste, characterized in that, It includes a base, several lifting units mounted on the base and capable of vertical telescopic movement, and a platform mounted on the lifting units for carrying construction waste. Several hooks for quick connection with external vehicles are provided on the side wall of the base. The lifting unit includes a storage box, a roller, and a lifting chain composed of several chain links. The roller is rotatably disposed in the middle of the storage box. The storage box is provided with a vertical channel with the opening of the vertical channel facing upward. One end of the lifting chain is located inside the storage box and is wound around the roller. The other end of the lifting chain extends out through the vertical channel, and this end of the lifting chain is connected to the platform through a connecting plate. The chain link has a side platform on its side wall. When two adjacent chain links rotate relative to each other and are collinear, the two side platforms abut against each other. When two adjacent chain links rotate relative to each other to the other side, the two side platforms separate from each other.

2. The portable vertical conveying device for construction waste according to claim 1, characterized in that, The lifting units are divided into multiple groups, each group containing two lifting units, and the side platforms on the two lifting units in each group are correspondingly arranged. The two vertical channels on the two lifting units in each group form an output channel, and the two lifting chains are transported through the output channel.

3. A portable vertical conveying device for construction waste according to claim 2, characterized in that, Each lifting unit in the group has several slots on its side platform sidewall. The slots are arranged along the length of the lifting chain and the length of the slots is along the width of the lifting chain. The cross-section of the slots is arc-shaped. Another lifting unit has several locking ridges on its side platform sidewall that cooperate with each slot.

4. A portable vertical conveying device for construction waste according to claim 1, characterized in that, The chain link is provided with a baffle and a mounting groove. The baffle and the side platform are located on the two sides of the chain link respectively. A sliding arm is slidably arranged in the mounting groove. A baffle is provided on the sliding arm. The baffle on one chain link works in conjunction with the baffle on the adjacent chain link so that when two adjacent chain links are collinear, the baffle on the baffle blocks the baffle on the baffle.

5. A portable vertical conveying device for construction waste according to claim 4, characterized in that, The sliding arm is equipped with a lever, and the inner wall of the vertical channel is provided with an inclined lever groove, which is used to guide the lever to move along the width direction of the lifting chain.

6. A portable vertical conveying device for construction waste according to claim 4, characterized in that, A magnetic conductor is provided on the side wall of the sliding arm, and a permanent magnet that cooperates with the magnetic conductor is provided in the mounting groove. The length direction of the permanent magnet is along the moving direction of the sliding arm.

7. A portable vertical conveying device for construction waste according to claim 4, characterized in that, The chain link has a groove, which is used in conjunction with a baffle on the adjacent chain link.

8. A portable vertical conveying device for construction waste according to claim 5, characterized in that, The side wall of the side platform is provided with a slot, and when the lifting chain is wound on the winding roller, the lever is located in the slot corresponding to the chain link.

9. A portable vertical conveying device for construction waste according to claim 2, characterized in that, The base consists of a fixed seat and a movable seat that can move relative to each other. The hook is set on the fixed seat. Several curved arm structures are provided between the fixed seat and the movable seat. The curved arm structure consists of a connecting arm one and a connecting arm two that are rotatably connected to each other. The connecting arm one is rotatably connected to the fixed seat, and the connecting arm two is rotatably connected to the movable seat. Multiple lifting units are correspondingly arranged on a fixed seat and a movable seat. The lifting unit on the fixed seat is fixedly connected to the platform, and the lifting unit on the movable seat is slidably connected to the platform via a guide rail.

10. A portable vertical conveying device for construction waste according to claim 9, characterized in that, The platform consists of a fixed platform and a movable platform. The fixed platform and the movable platform are rotatably connected by several hinges. The fixed platform is fixedly connected to the lifting unit on the fixed seat. The guide rail consists of two sections, which are respectively set on the fixed platform and the movable platform. When the fixed platform and the movable platform are coplanar, the two sections of the guide rail are collinear.

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